AS5408 - GR-NET - National Infrastructures for Research and Technology S.A., GR

Greece
AS Number
AS5408
AS Name
GR-NET
Org Name
National Infrastructures for Research and Technology S.A.
Country / Region
Greece
Registry

ripe

RegDate

Updated

2018-11-22T15:27:22Z

AS5408 Looking Glass
http://mon.grnet.gr/lg
IPv4Prefixes

39

IPv6Prefixes

2

IPv4 NUMs

245,248

IPv6 NUMs(/64)

38,654,705,664

CIDR Description IP Num
37.32.128.0/17
IRR Valid
National Infrastructures for Research and Technology S.A. 32768
44.31.164.0/24
IRR Valid
Amateur Radio Digital Communications 256
62.217.64.0/18
IRR InValid
National Infrastructures for Research and Technology S.A. 16384
62.217.79.0/24
IRR Valid
National Infrastructures for Research and Technology S.A. 256
62.217.85.0/24
IRR Valid
National Infrastructures for Research and Technology S.A. 256
62.217.119.0/24
IRR Valid
National Infrastructures for Research and Technology S.A. 256
62.217.124.0/24
IRR Valid
National Infrastructures for Research and Technology S.A. 256
62.217.126.0/24
IRR Valid
National Infrastructures for Research and Technology S.A. 256
83.212.0.0/16
IRR InValid
National Infrastructures for Research and Technology S.A. 65536
83.212.1.0/24
IRR Valid
National Infrastructures for Research and Technology S.A. 256
83.212.2.0/24
IRR Valid
National Infrastructures for Research and Technology S.A. 256
83.212.5.0/24
IRR Valid
National Infrastructures for Research and Technology S.A. 256
83.212.168.0/23
IRR Valid
VIMA 512
83.212.170.0/23
IRR Valid
VIMA 512
83.212.174.0/23
IRR Valid
VIMA 512
91.227.108.0/24
IRR Valid
National Infrastructures for Research and Technology S.A. 256
109.107.139.0/24
IRR Valid
Sarantaporo.gr Non Profit Organization 256
143.233.68.0/24
IRR Valid
National Center of Scientific Research DEMOKRITOS 256
143.233.182.0/23
IRR Valid
AUA-NET 512
143.233.184.0/22
IRR Valid
AUA-NET 1024
143.233.188.0/23
IRR Valid
AUA-NET 512
143.233.204.0/24
IRR Valid
National Center of Scientific Research DEMOKRITOS 256
150.140.128.0/17
IRR Valid
University of Patras 32768
185.5.76.0/22
IRR Valid
National Infrastructures for Research and Technology S.A. 1024
185.81.196.0/22
IRR Valid
National Infrastructures for Research and Technology S.A. 1024
193.105.109.0/24
IRR Valid
National Infrastructures for Research and Technology S.A. 256
193.218.36.0/24
IRR Valid
Mediterranean Agronomic Institute of Chania 256
193.218.124.0/23
IRR Valid
ESYP 512
194.42.50.0/23
IRR Valid
National Infrastructures for Research and Technology S.A. 512
194.42.52.0/23
IRR Valid
National Infrastructures for Research and Technology S.A. 512
194.42.54.0/24
IRR Valid
National Infrastructures for Research and Technology S.A. 256
194.177.192.0/19
IRR InValid
National Infrastructures for Research and Technology S.A. 8192
194.177.208.0/23
IRR Valid
National Infrastructures for Research and Technology S.A. 512
194.177.208.0/22
IRR InValid
National Infrastructures for Research and Technology S.A. 1024
195.130.64.0/18
IRR InValid
National Infrastructures for Research and Technology S.A. 16384
195.251.0.0/16
IRR InValid
National Infrastructures for Research and Technology S.A. 65536
195.251.2.0/24
IRR Valid
National Infrastructures for Research and Technology S.A. 256
195.251.24.0/22
IRR Valid
National Infrastructures for Research and Technology S.A. 1024
195.251.99.0/24
IRR InValid
PAIS 256
CIDR Description IP NUMs(prefix /64)
2001:648::/29
IRR Valid
National Infrastructures for Research and Technology S.A. 34359738368
2a11:cfc0::/32
IRR Valid
Sarantaporo.gr Non Profit Organization 4294967296
AS Description Country / Region IPv4 NUMs IPv6 NUMs IPv4 IPv6
AS21320 GEANT_IAS_VRF - GEANT Vereniging, NL Netherlands 2,048 0 IPv4 IPv4 IPv6 IPv6
AS3491 PCCWG-APAC-HK - PCCW Global (HK) Limited, HK Hong Kong 1,362,176 13,421,838,336 IPv4 IPv4 IPv6 IPv6
AS13335 CLOUDFLARENET - Cloudflare, Inc., US United States 1,366,016 82,706,169,856 IPv4 IPv4
AS20965 GEANT - GEANT Vereniging, NL Netherlands 9,216 8,589,934,592 IPv4 IPv4 IPv6 IPv6
AS Description Country / Region IPv4 NUMs IPv6 NUMs IPv4 IPv6
AS31563 HNMS-AS - Hellenic National Meteorological Service, GR Greece 768 131,072 IPv4 IPv4 IPv6 IPv6
AS8253 DUTHNET-AS - Democritus University of Thrace, GR Greece 10,496 65,536 IPv4 IPv4 IPv6 IPv6
AS12364 UOM - University of Macedonia, Economic and Social Sciences, GR Greece 5,120 65,536 IPv4 IPv4 IPv6 IPv6
AS15690 NOANET - NATIONAL OBSERVATORY OF ATHENS, GR Greece 1,280 65,536 IPv4 IPv4 IPv6 IPv6
AS20813 HOU-AS - Hellenic Open University, GR Greece 1,024 0 IPv4 IPv4
AS8248 GR-EDUNET - Computer Technology Institute and Press "Diophantus", GR Greece 77,824 16,973,824 IPv4 IPv4 IPv6 IPv6
AS8522 FORTH-AS - Foundation of Research and Technology Hellas, GR Greece 65,792 65,536 IPv4 IPv4 IPv6 IPv6
AS8581 UOI - University Of Ioannina, GR Greece 9,472 65,536 IPv4 IPv4 IPv6 IPv6
AS12402 UOPIRAEUS - University of Piraeus, GR Greece 4,608 65,536 IPv4 IPv4 IPv6 IPv6
AS47065 PEERING-RESEARCH-TESTBED-USC-UFMG-AS47065 - USC / UFMG PEERING Research Testbed, US United States 3,584 11,403,264 IPv4 IPv4 IPv6 IPv6
AS2546 ARIADNE-T - National Center of Scientific Research DEMOKRITOS, GR Greece 65,536 65,536 IPv4 IPv4 IPv6 IPv6
AS5470 ASAUTHNET - Aristotle University of Thessaloniki, GR Greece 65,792 65,536 IPv4 IPv4 IPv6 IPv6
AS15536 CEDEFOP-AS - European Centre for the Development of Vocational Training (CEDEFOP), GR Greece 512 0 IPv4 IPv4
AS15948 ICE/HT fundamental and technological research, GR Greece 1,024 0 IPv4 IPv4
AS3323 NTUA - National Technical University of Athens, GR Greece 65,536 65,536 IPv4 IPv4 IPv6 IPv6
AS6867 UCnet - University of Crete, GR Greece 65,792 65,536 IPv4 IPv4 IPv6 IPv6
AS8278 TUC-AS - Technical University of Crete, GR Greece 65,536 65,536 IPv4 IPv4 IPv6 IPv6
AS8618 Ionion University, GR Greece 2,048 0 IPv4 IPv4
AS8643 ATHENAnet - NATIONAL AND KAPODISTRIAN UNIVERSITY OF ATHENS, GR Greece 51,712 65,536 IPv4 IPv4 IPv6 IPv6
AS9069 UNIWA, GR Greece 13,312 65,536 IPv4 IPv4 IPv6 IPv6
AS202640 snfcc - KENTRO POLITISMOU IDRYMA STAVROS NIARCHOS MONOPROSOPI A.E., GR Greece 1,024 34,359,738,368 IPv4 IPv4 IPv6 IPv6
AS8611 Athens University of Economics and Business, GR Greece 4,096 0 IPv4 IPv4
AS8762 TEI-OF-CRETE-AS - Hellenic Mediterranean University, GR Greece 66,048 65,536 IPv4 IPv4 IPv6 IPv6
AS8617 University of the Aegean, GR Greece 8,192 0 IPv4 IPv4
AS50148 ERT - Elliniki Radiofonia Tileorasi (ERT) SA, GR Greece 1,280 0 IPv4 IPv4
AS203348 EETT-AS - Hellenic Telecommunications and Post Commision, GR Greece 256 65,536 IPv4 IPv4 IPv6 IPv6
AS47616 CERTH - Center for Research and Technology Hellas (CERTH), GR Greece 65,536 65,536 IPv4 IPv4 IPv6 IPv6
AS5489 TEI-THES - International Hellenic University, GR Greece 2,560 0 IPv4 IPv4
AS6744 RACTI-NET - Computer Technology Institute and Press "Diophantus", GR Greece 32,768 0 IPv4 IPv4
AS8991 HCMR-NET - Hellenic Centre for Marine Research, GR Greece 1,280 0 IPv4 IPv4

Peers at this Exchange Point

Country / Region IX IPv4 IPv6 Port Speed Updated
Greece GR-IX::Thessaloniki - Greek Internet Exchange - Thessaloniki 185.1.123.20 2001:7f8:ce::20 10 Gbps 2026-03-25 02:52:48
Greece GR-IX::Athens - Greek Internet Exchange - Athens 176.126.38.31 2001:7f8:6e::31 10 Gbps 2026-03-25 01:02:00
Greece GR-IX::Athens - Greek Internet Exchange - Athens 176.126.38.1 2001:7f8:6e::1 20 Gbps 2026-03-25 01:02:00

Private Peering Facilities

Country / Region Name City Website Updated
Digital Realty ATH1/2/3 - Athens Koropi https://www.digitalrealty.com/data-centers/emea/athens 2018-12-13 16:26:10
TI Sparkle Greece (IDC) Metamorfosi https://www.tisparkle.com/greece 2018-12-13 16:26:40
Εθνικό Ίδρυμα Ερευνών / National Hellenic Research Foundation (EIE/NHRF) Athens http://www.grnet.gr/ 2018-12-13 16:27:56

Whois Record

as-block AS5377 - AS5535

as-block
descr
RIPE NCC ASN block
remarks
These AS Numbers are assigned to network operators in the RIPE NCC service region.
mnt-by
RIPE-NCC-HM-MNT
created
2018-11-22T15:27:22Z
last-modified
2018-11-22T15:27:22Z
source
RIPE

aut-num AS5408

aut-num
as-name
GR-NET
notify
descr
http://www.grnet.gr
org
ORG-GRaT1-RIPE
remarks
# ROUTING POLICY FOR GRNET AS5408)
General Info
==============
GRNET donwstream customers are Greek Universities, Academic
and Research Institutes
GRNET has GEANT as its upstream; it also connects to GRIX
Internet Exchange
RPKI in GRNET
==============
GRNET ***drops*** ALL RPKI invalid prefixes received from Upstream
and Greek Internet Exchange (GR-IX)
PA Space Aggregation
=============
GRNET aggregates its PA space before announcing it to its
upstream(s) and exchanges. Should a customer with PA space
wishes not to have its prefixes aggregated, a special community
should be used to tag this route (see below).
Prefixes from GRNET allocation that announced from public ASs
are announced deaggregated.\
Prefix lengths longer than /24 for IPv4 and /48 for IPv6 are NOT
announced to Upstream or GRIX
Primary/Backup control
========================
GRNET respects the MED received by its customers; thus, the
customers can indicate their primary/backup line and control
incoming traffic by setting MED appropriatelly. Also, the
customers may use the community 5408:110 to indicate their
backup connection (lower local pref), but this method is
recommended only for customers multihomed to another Greek ISP
that use their connection with GRNET as backup.
Hot Potato routing
========================
By setting the same attributes (Local Preference and MED) on
advertising prefixes, a customer with more than one connections
with GRNET has the ability to use all active paths.
By this way, "hot potato" routing is achieved. Traffic will exit
GRNETs network choosing the closest to destination border router.
Anycast
========================
GRNET does not follow any explicit policy for anycast services.
Normal routing (and, thus, preference) applies to all anycast
routes
BGP Communities used in GRNET:
================================
Informational Communities:
+---------------------------------------------------------------+
| These communities tag the source of the routes. They can ONLY |
| be appended by GRNET. Routes with this tag received by any |
| peer will be rejected! |
+---------------------------------------------------------------+
5408:1001 Routes received from GEANT
5408:1002 Routes received from GRIX
5408:1003 Routes from GRNET (Customers & BackBone)
5408:1004 Routes from GEANT NREN
5408:1005 Routes from GEANT IAS
5408:1006 Routes from GEANT CLS
Special Communities for route manipulation:
+---------------------------------------------------------------+
| These communities tag the source of the routes. They can ONLY |
| be appended by GRNET. Routes with this tag received by any |
| peer will be rejected! |
+---------------------------------------------------------------+
5408:2000 Do not aggregate
5408:2005 Prepend AS5408 x5
5408:4001 Do not announce to GRIX
5408:4005 Do not announce to GEANT
5408:4006 Do not announce to GEANT NREN VRF
5408:4007 Do not announce to GEANT Tier-1
Routing Manipulation (for GRNET customers only):
+---------------------------------------------------------------+
| This set of tools allow GRNET clients to manipulate their |
| routing: |
LOCAL PREFERENCES IN GRNET:
=============================
LocalPref 200: - GRNET Customers
- Special Customers (KROOT, SYZEYXIS, ...)
- Locally Generated GRNET Aggregates
LocalPref 190: - GRNET Customers, backup connection
LocalPref 180: - GEANT NREN VRF
LocalPref 170: - GRIX routes (MED=0 Primary, MED=20 Secondary)
LocalPref 160: - GEANT CLS VRF
LocalPref 150: - GRNET as backup in dual homed customers
LocalPref 140: - GEANT IAS VRF
=======================================================================
iBGP (AS5408)
----------------------------------------------------------------------
PEER DESCRIPTION:
Full-mesh iBGP peerings.
Import Policy: Accept ANY
Export Policy: Advertize (a) all routes (FIRT) or (b) GRNET & GRIX
routes only, depending on router capabilities.
======================================================================
=======================================================================
GEANT (AS20965)
----------------------------------------------------------------------
PEER DESCRIPTION:
GEANT is the Internet Upstream for GRNET
Import Policy: Accept all routes (apart from martians),
set MED appropratelly on primary & backup peering.
Export Policy: Announce all GRNET routes (tagged with 5408:1003)
that are not tagged with 5408:4005 (don't-announce-to-geant).
Aggregate PA space (except from the routes tagged with
5408:2000 (do not aggregate) community.
=======================================================================
=======================================================================
GRIX Peers
----------------------------------------------------------------------
PEER DESCRIPTION:
These are the GRIX Peers of GRNET
Import Policy: Reject routes tagged with special communities
Accept all other routes that
(a) have the appropriate AS path and
(b) originate from the peer (or behind it)
For these, and according to the received communities:
(i) Set the appropriate local preference
Export Policy: Announce all GRNET routes (tagged with 5408:1003)
that are not tagged with 5408:4001 (don't-announce-to-grix).
Aggregate PA space (except from the routes tagged with
5408:2000 (do not aggregate) community.
=======================================================================
=======================================================================
GRIX RS
----------------------------------------------------------------------
=======================================================================
=======================================================================
GRIX ROUTER @ GRIX
----------------------------------------------------------------------
=======================================================================
=======================================================================
K-ROOT mirror @ GRIX
----------------------------------------------------------------------
PEER DESCRIPTION:
K-ROOT @ GRIX. Accept K-Root routes, announce within GRNET *only*
Announce default route.
=======================================================================
=======================================================================
GRNET Clients
----------------------------------------------------------------------
PEER DESCRIPTION:
These are the normal GRNET clients (Universities, Research orgs, etc)
Import Policy: Reject routes tagged with special communities
Accept all other routes that
(a) have the appropriate AS path and
(b) originate from the client (or behind it)
For these, and according to the received communities:
(i) Set the appropriate local preference
Prefixes with no corresponding exact matching route on the
RIPE whois database are only accepted if tagged with NO_EXPORT
Local Preference (on backup links) can be lowered by
using the appropriate community (5408:110), but MED is
recommended for this purpose.
Export Policy:
(a) either all routes (FIRT)
(b) or a partial routing table, consiting
GRNET (5408:1003) and GRIX (5408:1002) routes
(c) or a partial routing table, consiting
GRNET (5408:1003) and GRIX (5408:1002) routes plus default route 0/0.
(d) or default route 0/0.
=======================================================================
=======================================================================
EU ACADEMIC INTERNET (GRNET + OTHER EU NRENS)
----------------------------------------------------------------------
PEER DESCRIPTION: announce GRNET and GEANT NREN (community 20965:155), route within GRNET *only*.
=======================================================================
=======================================================================
GRNET SERVICES
----------------------------------------------------------------------
PEER DESCRIPTION:
do not announce anything, accept AS65500
=======================================================================
=======================================================================
GRNET ECI-ECN
----------------------------------------------------------------------
PEER DESCRIPTION:
do not announce anything, accept AS65502
=======================================================================
=======================================================================
SYZEYXIS
----------------------------------------------------------------------
PEER DESCRIPTION:
announce only GRNET routes, route within GRNET *only*.
=======================================================================
=======================================================================
AKAMAI
----------------------------------------------------------------------
PEER DESCRIPTION:
AKAMAI. Accept no routes. Announce GRNET customers.
=======================================================================
=======================================================================
# END OF ROUTING POLICY FOR GRNET
import
from prng-as5408-ibgp accept ANY;
from AS20965 62.40.124.89 action community.append(5408:1001); accept NOT community.contains(5408:1002) AND NOT community.contains(5408:1003) AND NOT fltr-martian; REFINE { from AS20965 action aspath.prepend(AS20965,AS20965,AS20965); accept community.contains(20965:7777); from AS20965 accept ANY; }
from AS20965 62.40.124.141 action community.append(5408:1001); med=20; accept NOT community.contains(5408:1002) AND NOT community.contains(5408:1003) AND NOT fltr-martian; REFINE { from AS20965 action aspath.prepend(AS20965,AS20965,AS20965); accept community.contains(20965:7777); from AS20965 accept ANY; }
from AS20965 62.40.102.252 action community.append(5408:1001); accept NOT community.contains(5408:1002) AND NOT community.contains(5408:1003) AND NOT fltr-martian;
from AS20965 62.40.102.254 action community.append(5408:1001); med=20; accept NOT community.contains(5408:1002) AND NOT community.contains(5408:1003) AND NOT fltr-martian;
from prng-as5408-grix-peers action pref=105; community.append(5408:1002); accept NOT community.contains(5408:1001) AND NOT community.contains(5408:1003) AND <^PeerAS+AS5408:AS-GRIX:PeerAS*$>; REFINE { from AS-GRIX at 176.126.38.1 action med=0; accept ANY; from AS-GRIX at 176.126.38.31 action med=20; accept ANY; } # AND (PeerAS^0-27 OR AS5408:AS-GRIX:PeerAS^0-27 OR AS5408:AS-GRIX:PeerAS^0-27); Primary-Backup
from AS50745 action pref=105; med=30; community.append(5408:1002); accept <^AS-GRIX> AND NOT community.contains(5408:1001) AND NOT community.contains(5408:1003);
from AS199399 action pref=105; community.append(5408:1002); accept AS199399; REFINE { from AS-GRIX at 176.126.38.1 action med=0; accept ANY; from AS-GRIX at 176.126.38.31 action med=20; accept ANY; } # Primary-Backup
from AS25152 action pref=105; community.append(5408:1002); community.append(5408:4001); community.append(5408:4005); accept {193.0.14.0/24, 195.251.59.0/28} AND NOT community.contains(5408:1001) AND NOT community.contains(5408:1003); REFINE { from AS-GRIX at 176.126.38.1 action med=0; accept ANY; from AS-GRIX at 176.126.38.31 action med=20; accept ANY; } # Primary-Backup
from prng-as5408-grnet-customers action community.append(5408:1003); accept NOT community.contains(5408:1001) AND NOT community.contains(5408:1002) AND community.contains(NO_EXPORT) AND (PeerAS^0-32 OR PeerAS:AS-TO-GRNET^0-32) AND <^PeerAS+PeerAS:AS-TO-GRNET*$>; REFINE { from AS-ANY action pref=110; accept community.contains(5408:110); from AS-ANY action pref=100; accept ANY; }
from prng-as5408-grnet-customers action community.append(5408:1003); accept NOT community.contains(5408:1001) AND NOT community.contains(5408:1002) AND (PeerAS OR PeerAS:AS-TO-GRNET) AND <^PeerAS+PeerAS:AS-TO-GRNET*$>; REFINE { from AS-ANY action aspath.prepend(AS5408,AS5408,AS5408,AS5408,AS5408); accept community.contains(5408:2005); from AS-ANY accept ANY; } REFINE { from AS-ANY action pref=110; accept community.contains(5408:110); from AS-ANY action pref=100; accept ANY; }
from prng-as5408-customers-eu-academic-internet action community.append(5408:1003); community.append(5408:2000); community.append(5408:4001); community.append(20965:0000); community.append(20965:0011); community.append(20965:0012); community.append(20965:0013); community.append(20965:7000); accept NOT community.contains(5408:1001) AND NOT community.contains(5408:1002) AND community.contains(NO_EXPORT) AND (PeerAS^0-32 OR PeerAS:AS-TO-GRNET^0-32) AND <^PeerAS+PeerAS:AS-TO-GRNET*$>; REFINE { from AS-ANY action pref=110; accept community.contains(5408:110); from AS-ANY action pref=100; accept ANY; }
from prng-as5408-customers-eu-academic-internet action community.append(5408:1003); community.append(5408:2000); community.append(5408:4001); community.append(20965:0000); community.append(20965:0011); community.append(20965:0012); community.append(20965:0013); community.append(20965:7000); accept NOT community.contains(5408:1001) AND NOT community.contains(5408:1002) AND (PeerAS OR PeerAS:AS-TO-GRNET) AND <^PeerAS+PeerAS:AS-TO-GRNET*$>; REFINE { from AS-ANY action aspath.prepend(AS5408,AS5408,AS5408,AS5408,AS5408); accept community.contains(5408:2005); from AS-ANY accept ANY; } REFINE { from AS-ANY action pref=110; accept community.contains(5408:110); from AS-ANY action pref=100; accept ANY; }
from AS65500 action pref=100; community.append(NO_EXPORT); accept AS65500
from AS65502 action pref=100; accept AS65502
from AS65052 action pref=100; community.append(5408:1003); community.append(5408:4001); community.append(5408:4005); accept (PeerAS OR PeerAS:AS-TO-GRNET) AND <^PeerAS+PeerAS:AS-TO-GRNET*$> AND NOT community.contains(5408:1001) AND NOT community.contains(5408:1002);
from AS21357 accept NOT ANY;
from AS65535 accept NOT ANY;
export
to prng-as5408-ibgp-part announce community.contains(5408:1003) OR {0.0.0.0/0};
to prng-as5408-ibgp announce ANY;
to AS20965 announce AS5408:RS-ROUTES; REFINE { to AS20965 62.40.124.89 action community.append(20965:7030); announce ANY; to AS20965 62.40.124.141 action community.append(20965:7030); announce ANY; to AS20965 62.40.102.252 announce ANY; to AS20965 62.40.102.254 announce ANY; }
to AS20965 announce community.contains(5408:1003) AND NOT community.contains(5408:4005); REFINE { to AS20965 announce (AS5408:AS-TO-GEANT AND NOT AS5408:RS-ROUTES^0-32); to AS20965 announce AS5408:RS-ROUTES^0-32 AND community.contains(5408:2000); } REFINE { to AS20965 62.40.124.89 action community.append(20965:7030); announce ANY; to AS20965 62.40.124.141 action community.append(20965:7030); announce ANY; to AS20965 62.40.102.252 announce ANY; to AS20965 62.40.102.254 announce ANY; }
to prng-as5408-grix-peers announce AS5408:RS-ROUTES OR AS199399;
to prng-as5408-grix-peers announce community.contains(5408:1003) AND NOT community.contains(5408:4001); REFINE { to prng-as5408-grix-peers announce (AS5408:AS-TO-AIX AND NOT AS5408:RS-ROUTES^0-32); to prng-as5408-grix-peers announce AS5408:RS-ROUTES^0-32 AND community.contains(5408:2000); }
to AS199399 announce community.contains(5408:1003) OR {0.0.0.0/0};
to AS25152 announce {0.0.0.0/0};
to prng-as5408-grnet-firt announce NOT {0.0.0.0/0};
to prng-as5408-grnet-customers announce AS5408:RS-ROUTES OR community.contains(5408:1002) OR community.contains(5408:1003);
to prng-as5408-grnet-customers-droute announce {0.0.0.0/0} OR AS5408:RS-ROUTES OR community.contains(5408:1002) OR community.contains(5408:1003);
to prng-as5408-customers-firt announce ANY;
to prng-as5408-customers-greek-internet announce community.contains(5408:1003) OR community.contains(5408:1002);
to prng-as5408-customers-greek-internet-dr announce community.contains(5408:1003) OR community.contains(5408:1002) OR {0.0.0.0/0};
to prng-as5408-customers-grnet announce community.contains(5408:1003);
to prng-as5408-customers-grnet-dr announce community.contains(5408:1003) OR {0.0.0.0/0};
to prng-as5408-customers-only-dr announce {0.0.0.0/0};
to prng-as5408-customers-eu-academic-internet announce community.contains(5408:1003) OR community.contains(20965:155);
to AS65500 announce NOT ANY;
to AS65502 announce NOT ANY;
to AS65052 announce community.contains(5408:1003);
to AS21357 announce AS5408:RS-ROUTES OR community.contains(5408:1003);
to AS65535 announce AS5408:RS-ROUTES;
to AS65535 announce community.contains(5408:1003); REFINE { to AS65535 announce (AS5408:AS-GRNET-CUSTOMERS-PUBLIC-AS AND NOT AS5408:RS-ROUTES^0-32); to AS65535 announce (AS5408:AS-GRNET-CUSTOMERS-PRIVATE-AS AND NOT AS5408:RS-ROUTES^0-32); }
status
ASSIGNED
admin-c
GN1931-RIPE
tech-c
GN1931-RIPE
mnt-by
RIPE-NCC-END-MNT
GRNET-NOC
created
1970-01-01T00:00:00Z
last-modified
2021-12-31T11:31:18Z
source
RIPE

organisation ORG-GRaT1-RIPE

organisation
ORG-GRaT1-RIPE
org-name
National Infrastructures for Research and Technology S.A.
country
GR
reg-nr
003057201000
org-type
LIR
address
7 Kifisias Av.
11523
Athens
GREECE
phone
+302107474274
fax-no
+302107474490
admin-c
GN1931-RIPE
AL3706-RIPE
tech-c
GN1931-RIPE
abuse-c
GN1931-RIPE
mnt-ref
RIPE-NCC-HM-MNT
GRNET-NOC
e-mail
mnt-by
RIPE-NCC-HM-MNT
GRNET-NOC
created
2004-04-17T11:24:56Z
last-modified
2026-05-13T07:30:57Z
source
RIPE

role GRNET NOC

role
GRNET NOC
org
ORG-GRaT1-RIPE
address
Greek Research and Technology Network (GRNET) S.A.
Kifisias 7
Athens 11523, GREECE
phone
+30 210 7474274
fax-no
+30 210 7474490
remarks
--------------------------------------
For complains about abuse, spam etc:
--------------------------------------
abuse-mailbox
admin-c
AS43112-RIPE
tech-c
AL3706-RIPE
mnt-by
GRNET-NOC
nic-hdl
GN1931-RIPE
created
2007-06-12T14:21:14Z
e-mail
last-modified
2019-09-19T15:39:37Z
source
RIPE
 

as-block:       AS5377 - AS5535
descr:          RIPE NCC ASN block
remarks:        These AS Numbers are assigned to network operators in the RIPE NCC service region.
mnt-by:         RIPE-NCC-HM-MNT
created:        2018-11-22T15:27:22Z
last-modified:  2018-11-22T15:27:22Z
source:         RIPE



aut-num:        AS5408
as-name:        GR-NET
notify:         [email protected]
descr:          http://www.grnet.gr
org:            ORG-GRaT1-RIPE
remarks:
remarks:
remarks:        # ROUTING POLICY FOR GRNET AS5408)
remarks:
remarks:        General Info
remarks:        ==============
remarks:        GRNET donwstream customers are Greek Universities, Academic
remarks:        and Research Institutes
remarks:        GRNET has GEANT as its upstream; it also connects to GRIX
remarks:        Internet Exchange
remarks:
remarks:        RPKI in GRNET
remarks:        ==============
remarks:        GRNET ***drops*** ALL RPKI invalid prefixes received from Upstream
remarks:        and Greek Internet Exchange (GR-IX)
remarks:
remarks:        PA Space Aggregation
remarks:        =============
remarks:        GRNET aggregates its PA space before announcing it to its
remarks:        upstream(s) and exchanges. Should a customer with PA space
remarks:        wishes not to have its prefixes aggregated, a special community
remarks:        should be used to tag this route (see below).
remarks:        Prefixes from GRNET allocation that announced from public ASs
remarks:        are announced deaggregated.\
remarks:        Prefix lengths longer than /24 for IPv4 and /48 for IPv6 are NOT
remarks:        announced to Upstream or GRIX
remarks:
remarks:        Primary/Backup control
remarks:        ========================
remarks:        GRNET respects the MED received by its customers; thus, the
remarks:        customers can indicate their primary/backup line and control
remarks:        incoming traffic by setting MED appropriatelly. Also, the
remarks:        customers may use the community 5408:110 to indicate their
remarks:        backup connection (lower local pref), but this method is
remarks:        recommended only for customers multihomed to another Greek ISP
remarks:        that use their connection with GRNET as backup.
remarks:
remarks:        Hot Potato routing
remarks:        ========================
remarks:        By setting the same attributes (Local Preference and MED) on
remarks:        advertising prefixes, a customer with more than one connections
remarks:        with GRNET has the ability to use all active paths.
remarks:        By this way, "hot potato" routing is achieved. Traffic will exit
remarks:        GRNETs network choosing the closest to destination border router.
remarks:
remarks:        Anycast
remarks:        ========================
remarks:        GRNET does not follow any explicit policy for anycast services.
remarks:        Normal routing (and, thus, preference) applies to all anycast
remarks:        routes
remarks:
remarks:        BGP Communities used in GRNET:
remarks:        ================================
remarks:
remarks:        Informational Communities:
remarks:        +---------------------------------------------------------------+
remarks:        | These communities tag the source of the routes. They can ONLY |
remarks:        | be appended by GRNET. Routes with this tag received by any |
remarks:        | peer will be rejected! |
remarks:        +---------------------------------------------------------------+
remarks:        5408:1001 Routes received from GEANT
remarks:        5408:1002 Routes received from GRIX
remarks:        5408:1003 Routes from GRNET (Customers & BackBone)
remarks:        5408:1004 Routes from GEANT NREN
remarks:        5408:1005 Routes from GEANT IAS
remarks:        5408:1006 Routes from GEANT CLS
remarks:
remarks:        Special Communities for route manipulation:
remarks:        +---------------------------------------------------------------+
remarks:        | These communities tag the source of the routes. They can ONLY |
remarks:        | be appended by GRNET. Routes with this tag received by any |
remarks:        | peer will be rejected! |
remarks:        +---------------------------------------------------------------+
remarks:        5408:2000 Do not aggregate
remarks:        5408:2005 Prepend AS5408 x5
remarks:        5408:4001 Do not announce to GRIX
remarks:        5408:4005 Do not announce to GEANT
remarks:        5408:4006 Do not announce to GEANT NREN VRF
remarks:        5408:4007 Do not announce to GEANT Tier-1
remarks:
remarks:        Routing Manipulation (for GRNET customers only):
remarks:        +---------------------------------------------------------------+
remarks:        | This set of tools allow GRNET clients to manipulate their |
remarks:        | routing: |
remarks:
remarks:        LOCAL PREFERENCES IN GRNET:
remarks:        =============================
remarks:
remarks:        LocalPref 200: - GRNET Customers
remarks:        - Special Customers (KROOT, SYZEYXIS, ...)
remarks:        - Locally Generated GRNET Aggregates
remarks:
remarks:        LocalPref 190: - GRNET Customers, backup connection
remarks:
remarks:        LocalPref 180: - GEANT NREN VRF
remarks:
remarks:        LocalPref 170: - GRIX routes (MED=0 Primary, MED=20 Secondary)
remarks:
remarks:        LocalPref 160: - GEANT CLS VRF
remarks:
remarks:        LocalPref 150: - GRNET as backup in dual homed customers
remarks:
remarks:        LocalPref 140: - GEANT IAS VRF
remarks:
remarks:
remarks:
remarks:
remarks:
remarks:
remarks:        =======================================================================
remarks:        iBGP (AS5408)
remarks:        ----------------------------------------------------------------------
remarks:        PEER DESCRIPTION:
remarks:        Full-mesh iBGP peerings.
remarks:        Import Policy: Accept ANY
remarks:        Export Policy: Advertize (a) all routes (FIRT) or (b) GRNET & GRIX
remarks:        routes only, depending on router capabilities.
remarks:        ======================================================================
import:         from prng-as5408-ibgp accept ANY;
export:         to prng-as5408-ibgp-part announce community.contains(5408:1003) OR {0.0.0.0/0};
export:         to prng-as5408-ibgp announce ANY;
remarks:        =======================================================================
remarks:        GEANT (AS20965)
remarks:        ----------------------------------------------------------------------
remarks:        PEER DESCRIPTION:
remarks:        GEANT is the Internet Upstream for GRNET
remarks:        Import Policy: Accept all routes (apart from martians),
remarks:        set MED appropratelly on primary & backup peering.
remarks:        Export Policy: Announce all GRNET routes (tagged with 5408:1003)
remarks:        that are not tagged with 5408:4005 (don't-announce-to-geant).
remarks:        Aggregate PA space (except from the routes tagged with
remarks:        5408:2000 (do not aggregate) community.
remarks:        =======================================================================
import:         from AS20965 62.40.124.89 action community.append(5408:1001); accept NOT community.contains(5408:1002) AND NOT community.contains(5408:1003) AND NOT fltr-martian; REFINE { from AS20965 action aspath.prepend(AS20965,AS20965,AS20965); accept community.contains(20965:7777); from AS20965 accept ANY; }
import:         from AS20965 62.40.124.141 action community.append(5408:1001); med=20; accept NOT community.contains(5408:1002) AND NOT community.contains(5408:1003) AND NOT fltr-martian; REFINE { from AS20965 action aspath.prepend(AS20965,AS20965,AS20965); accept community.contains(20965:7777); from AS20965 accept ANY; }
import:         from AS20965 62.40.102.252 action community.append(5408:1001); accept NOT community.contains(5408:1002) AND NOT community.contains(5408:1003) AND NOT fltr-martian;
import:         from AS20965 62.40.102.254 action community.append(5408:1001); med=20; accept NOT community.contains(5408:1002) AND NOT community.contains(5408:1003) AND NOT fltr-martian;
export:         to AS20965 announce AS5408:RS-ROUTES; REFINE { to AS20965 62.40.124.89 action community.append(20965:7030); announce ANY; to AS20965 62.40.124.141 action community.append(20965:7030); announce ANY; to AS20965 62.40.102.252 announce ANY; to AS20965 62.40.102.254 announce ANY; }
export:         to AS20965 announce community.contains(5408:1003) AND NOT community.contains(5408:4005); REFINE { to AS20965 announce (AS5408:AS-TO-GEANT AND NOT AS5408:RS-ROUTES^0-32); to AS20965 announce AS5408:RS-ROUTES^0-32 AND community.contains(5408:2000); } REFINE { to AS20965 62.40.124.89 action community.append(20965:7030); announce ANY; to AS20965 62.40.124.141 action community.append(20965:7030); announce ANY; to AS20965 62.40.102.252 announce ANY; to AS20965 62.40.102.254 announce ANY; }
remarks:        =======================================================================
remarks:        GRIX Peers
remarks:        ----------------------------------------------------------------------
remarks:        PEER DESCRIPTION:
remarks:        These are the GRIX Peers of GRNET
remarks:        Import Policy: Reject routes tagged with special communities
remarks:        Accept all other routes that
remarks:        (a) have the appropriate AS path and
remarks:        (b) originate from the peer (or behind it)
remarks:        For these, and according to the received communities:
remarks:        (i) Set the appropriate local preference
remarks:        Export Policy: Announce all GRNET routes (tagged with 5408:1003)
remarks:        that are not tagged with 5408:4001 (don't-announce-to-grix).
remarks:        Aggregate PA space (except from the routes tagged with
remarks:        5408:2000 (do not aggregate) community.
remarks:        =======================================================================
import:         from prng-as5408-grix-peers action pref=105; community.append(5408:1002); accept NOT community.contains(5408:1001) AND NOT community.contains(5408:1003) AND <^PeerAS+AS5408:AS-GRIX:PeerAS*$>; REFINE { from AS-GRIX at 176.126.38.1 action med=0; accept ANY; from AS-GRIX at 176.126.38.31 action med=20; accept ANY; } # AND (PeerAS^0-27 OR AS5408:AS-GRIX:PeerAS^0-27 OR AS5408:AS-GRIX:PeerAS^0-27); Primary-Backup
export:         to prng-as5408-grix-peers announce AS5408:RS-ROUTES OR AS199399;
export:         to prng-as5408-grix-peers announce community.contains(5408:1003) AND NOT community.contains(5408:4001); REFINE { to prng-as5408-grix-peers announce (AS5408:AS-TO-AIX AND NOT AS5408:RS-ROUTES^0-32); to prng-as5408-grix-peers announce AS5408:RS-ROUTES^0-32 AND community.contains(5408:2000); }
remarks:        =======================================================================
remarks:        GRIX RS
remarks:        ----------------------------------------------------------------------
remarks:        =======================================================================
import:         from AS50745 action pref=105; med=30; community.append(5408:1002); accept <^AS-GRIX> AND NOT community.contains(5408:1001) AND NOT community.contains(5408:1003);
remarks:        =======================================================================
remarks:        GRIX ROUTER @ GRIX
remarks:        ----------------------------------------------------------------------
remarks:        =======================================================================
import:         from AS199399 action pref=105; community.append(5408:1002); accept AS199399; REFINE { from AS-GRIX at 176.126.38.1 action med=0; accept ANY; from AS-GRIX at 176.126.38.31 action med=20; accept ANY; } # Primary-Backup
export:         to AS199399 announce community.contains(5408:1003) OR {0.0.0.0/0};
remarks:        =======================================================================
remarks:        K-ROOT mirror @ GRIX
remarks:        ----------------------------------------------------------------------
remarks:        PEER DESCRIPTION:
remarks:        K-ROOT @ GRIX. Accept K-Root routes, announce within GRNET *only*
remarks:        Announce default route.
remarks:        =======================================================================
import:         from AS25152 action pref=105; community.append(5408:1002); community.append(5408:4001); community.append(5408:4005); accept {193.0.14.0/24, 195.251.59.0/28} AND NOT community.contains(5408:1001) AND NOT community.contains(5408:1003); REFINE { from AS-GRIX at 176.126.38.1 action med=0; accept ANY; from AS-GRIX at 176.126.38.31 action med=20; accept ANY; } # Primary-Backup
export:         to AS25152 announce {0.0.0.0/0};
remarks:        =======================================================================
remarks:        GRNET Clients
remarks:        ----------------------------------------------------------------------
remarks:        PEER DESCRIPTION:
remarks:        These are the normal GRNET clients (Universities, Research orgs, etc)
remarks:        Import Policy: Reject routes tagged with special communities
remarks:        Accept all other routes that
remarks:        (a) have the appropriate AS path and
remarks:        (b) originate from the client (or behind it)
remarks:        For these, and according to the received communities:
remarks:        (i) Set the appropriate local preference
remarks:        Prefixes with no corresponding exact matching route on the
remarks:        RIPE whois database are only accepted if tagged with NO_EXPORT
remarks:        Local Preference (on backup links) can be lowered by
remarks:        using the appropriate community (5408:110), but MED is
remarks:        recommended for this purpose.
remarks:        Export Policy:
remarks:        (a) either all routes (FIRT)
remarks:        (b) or a partial routing table, consiting
remarks:        GRNET (5408:1003) and GRIX (5408:1002) routes
remarks:        (c) or a partial routing table, consiting
remarks:        GRNET (5408:1003) and GRIX (5408:1002) routes plus default route 0/0.
remarks:        (d) or default route 0/0.
remarks:        =======================================================================
import:         from prng-as5408-grnet-customers action community.append(5408:1003); accept NOT community.contains(5408:1001) AND NOT community.contains(5408:1002) AND community.contains(NO_EXPORT) AND (PeerAS^0-32 OR PeerAS:AS-TO-GRNET^0-32) AND <^PeerAS+PeerAS:AS-TO-GRNET*$>; REFINE { from AS-ANY action pref=110; accept community.contains(5408:110); from AS-ANY action pref=100; accept ANY; }
import:         from prng-as5408-grnet-customers action community.append(5408:1003); accept NOT community.contains(5408:1001) AND NOT community.contains(5408:1002) AND (PeerAS OR PeerAS:AS-TO-GRNET) AND <^PeerAS+PeerAS:AS-TO-GRNET*$>; REFINE { from AS-ANY action aspath.prepend(AS5408,AS5408,AS5408,AS5408,AS5408); accept community.contains(5408:2005); from AS-ANY accept ANY; } REFINE { from AS-ANY action pref=110; accept community.contains(5408:110); from AS-ANY action pref=100; accept ANY; }
export:         to prng-as5408-grnet-firt announce NOT {0.0.0.0/0};
export:         to prng-as5408-grnet-customers announce AS5408:RS-ROUTES OR community.contains(5408:1002) OR community.contains(5408:1003);
export:         to prng-as5408-grnet-customers-droute announce {0.0.0.0/0} OR AS5408:RS-ROUTES OR community.contains(5408:1002) OR community.contains(5408:1003);
export:         to prng-as5408-customers-firt announce ANY;
export:         to prng-as5408-customers-greek-internet announce community.contains(5408:1003) OR community.contains(5408:1002);
export:         to prng-as5408-customers-greek-internet-dr announce community.contains(5408:1003) OR community.contains(5408:1002) OR {0.0.0.0/0};
export:         to prng-as5408-customers-grnet announce community.contains(5408:1003);
export:         to prng-as5408-customers-grnet-dr announce community.contains(5408:1003) OR {0.0.0.0/0};
export:         to prng-as5408-customers-only-dr announce {0.0.0.0/0};
remarks:        =======================================================================
remarks:        EU ACADEMIC INTERNET (GRNET + OTHER EU NRENS)
remarks:        ----------------------------------------------------------------------
remarks:        PEER DESCRIPTION: announce GRNET and GEANT NREN (community 20965:155), route within GRNET *only*.
remarks:        =======================================================================
import:         from prng-as5408-customers-eu-academic-internet action community.append(5408:1003); community.append(5408:2000); community.append(5408:4001); community.append(20965:0000); community.append(20965:0011); community.append(20965:0012); community.append(20965:0013); community.append(20965:7000); accept NOT community.contains(5408:1001) AND NOT community.contains(5408:1002) AND community.contains(NO_EXPORT) AND (PeerAS^0-32 OR PeerAS:AS-TO-GRNET^0-32) AND <^PeerAS+PeerAS:AS-TO-GRNET*$>; REFINE { from AS-ANY action pref=110; accept community.contains(5408:110); from AS-ANY action pref=100; accept ANY; }
import:         from prng-as5408-customers-eu-academic-internet action community.append(5408:1003); community.append(5408:2000); community.append(5408:4001); community.append(20965:0000); community.append(20965:0011); community.append(20965:0012); community.append(20965:0013); community.append(20965:7000); accept NOT community.contains(5408:1001) AND NOT community.contains(5408:1002) AND (PeerAS OR PeerAS:AS-TO-GRNET) AND <^PeerAS+PeerAS:AS-TO-GRNET*$>; REFINE { from AS-ANY action aspath.prepend(AS5408,AS5408,AS5408,AS5408,AS5408); accept community.contains(5408:2005); from AS-ANY accept ANY; } REFINE { from AS-ANY action pref=110; accept community.contains(5408:110); from AS-ANY action pref=100; accept ANY; }
export:         to prng-as5408-customers-eu-academic-internet announce community.contains(5408:1003) OR community.contains(20965:155);
remarks:        =======================================================================
remarks:        GRNET SERVICES
remarks:        ----------------------------------------------------------------------
remarks:        PEER DESCRIPTION:
remarks:        do not announce anything, accept AS65500
remarks:        =======================================================================
import:         from AS65500 action pref=100; community.append(NO_EXPORT); accept AS65500
export:         to AS65500 announce NOT ANY;
remarks:        =======================================================================
remarks:        GRNET ECI-ECN
remarks:        ----------------------------------------------------------------------
remarks:        PEER DESCRIPTION:
remarks:        do not announce anything, accept AS65502
remarks:        =======================================================================
import:         from AS65502 action pref=100; accept AS65502
export:         to AS65502 announce NOT ANY;
remarks:        =======================================================================
remarks:        SYZEYXIS
remarks:        ----------------------------------------------------------------------
remarks:        PEER DESCRIPTION:
remarks:        announce only GRNET routes, route within GRNET *only*.
remarks:        =======================================================================
import:         from AS65052 action pref=100; community.append(5408:1003); community.append(5408:4001); community.append(5408:4005); accept (PeerAS OR PeerAS:AS-TO-GRNET) AND <^PeerAS+PeerAS:AS-TO-GRNET*$> AND NOT community.contains(5408:1001) AND NOT community.contains(5408:1002);
export:         to AS65052 announce community.contains(5408:1003);
remarks:        =======================================================================
remarks:        AKAMAI
remarks:        ----------------------------------------------------------------------
remarks:        PEER DESCRIPTION:
remarks:        AKAMAI. Accept no routes. Announce GRNET customers.
remarks:        =======================================================================
import:         from AS21357 accept NOT ANY;
export:         to AS21357 announce AS5408:RS-ROUTES OR community.contains(5408:1003);
remarks:        =======================================================================
import:         from AS65535 accept NOT ANY;
export:         to AS65535 announce AS5408:RS-ROUTES;
export:         to AS65535 announce community.contains(5408:1003); REFINE { to AS65535 announce (AS5408:AS-GRNET-CUSTOMERS-PUBLIC-AS AND NOT AS5408:RS-ROUTES^0-32); to AS65535 announce (AS5408:AS-GRNET-CUSTOMERS-PRIVATE-AS AND NOT AS5408:RS-ROUTES^0-32); }
remarks:
remarks:
remarks:
remarks:        # END OF ROUTING POLICY FOR GRNET
remarks:
remarks:
status:         ASSIGNED
admin-c:        GN1931-RIPE
tech-c:         GN1931-RIPE
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         GRNET-NOC
created:        1970-01-01T00:00:00Z
last-modified:  2021-12-31T11:31:18Z
source:         RIPE

organisation:   ORG-GRaT1-RIPE
org-name:       National Infrastructures for Research and Technology S.A.
country:        GR
reg-nr:         003057201000
org-type:       LIR
address:        7 Kifisias Av.
address:        11523
address:        Athens
address:        GREECE
phone:          +302107474274
fax-no:         +302107474490
admin-c:        GN1931-RIPE
admin-c:        AL3706-RIPE
tech-c:         GN1931-RIPE
abuse-c:        GN1931-RIPE
mnt-ref:        RIPE-NCC-HM-MNT
mnt-ref:        GRNET-NOC
e-mail:         [email protected]
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         GRNET-NOC
created:        2004-04-17T11:24:56Z
last-modified:  2026-05-13T07:30:57Z
source:         RIPE

role:           GRNET NOC
org:            ORG-GRaT1-RIPE
address:        Greek Research and Technology Network (GRNET) S.A.
address:        Kifisias 7
address:        Athens 11523, GREECE
phone:          +30 210 7474274
fax-no:         +30 210 7474490
remarks:        --------------------------------------
remarks:        For complains about abuse, spam etc:
abuse-mailbox:  [email protected]
remarks:        --------------------------------------
admin-c:        AS43112-RIPE
tech-c:         AL3706-RIPE
mnt-by:         GRNET-NOC
nic-hdl:        GN1931-RIPE
created:        2007-06-12T14:21:14Z
e-mail:         [email protected]
last-modified:  2019-09-19T15:39:37Z
source:         RIPE