RIPEstat

Routing information (RIS)

Originates prefixes visible
Is seen in other routes

Name and holder of this ASN:

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

RIR	Status	Registration	Country
RIPE NCC	ALLOCATED	1995-09-06	GR

Showing results for AS5408 as of 2025-03-27 16:00:00 UTC

At 2025-03-27 16:00:00 UTC, AS5408 was visible to 100% of 285 IPv4 and 100% of 290 IPv6 RIS full peers.

First ever seen as origin announcing 143.233.169.0/24, on 2000-08-18 08:00:00 UTC.

Originated IPv4 prefixes: 42
Originated IPv6 prefixes: 2
Observed BGP neighbours: 37
Address space announced (IPv4): 246016 IPs
Address space announced (IPv6): equiv. to 524289 /48s

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Showing results for AS5408 as of 2025-03-27 16:00:00 UTC

Results exclude routes with very low visibility (less than 10 RIS full-feed peers seeing).
Given query time (2025-03-27 16:00:00 UTC) has been changed because it is earlier than the time there is data available for!

abuse@grnet.gr

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RIR	RIR's Whois
RIPE NCC	https://apps.db.ripe.net/search/query.html

Showing results for AS5408

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IPv4 and IPv6 results are combined in the map - click button to switch between them.

Prefix	Type	Percent	Country
109.107.139.0/24	IPv4	0.1%	GR
143.233.182.0/23	IPv4	0.21%	GR
143.233.184.0/22	IPv4	0.42%	GR
143.233.188.0/23	IPv4	0.21%	GR
143.233.204.0/24	IPv4	0.1%	GR
143.233.68.0/24	IPv4	0.1%	GR
145.116.216.0/24	IPv4	0.1%	NL
150.140.128.0/17	IPv4	13.32%	GR
185.5.76.0/22	IPv4	0.42%	GR
185.81.196.0/22	IPv4	0.42%	GR

Showing results for AS5408 as of 2025-03-25 14:45:40 UTC

(+)(-)

aut-num	5408
as-name	GR-NET
descr	http://www.grnet.gr
org	ORG-GRaT1-RIPE
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	RPKI in GRNET
remarks	==============
remarks	GRNET *drops* ALL RPKI invalid prefixes received from Upstream
remarks	and Greek Internet Exchange (GR-IX)
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	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	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	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	BGP Communities used in GRNET:
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	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	Routing Manipulation (for GRNET customers only):
remarks	+---------------------------------------------------------------+
remarks	\| This set of tools allow GRNET clients to manipulate their \|
remarks	\| routing: \|
remarks	LOCAL PREFERENCES IN GRNET:
remarks	=============================
remarks	LocalPref 200: - GRNET Customers
remarks	- Special Customers (KROOT, SYZEYXIS, ...)
remarks	- Locally Generated GRNET Aggregates
remarks	LocalPref 190: - GRNET Customers, backup connection
remarks	LocalPref 180: - GEANT NREN VRF
remarks	LocalPref 170: - GRIX routes (MED=0 Primary, MED=20 Secondary)
remarks	LocalPref 160: - GEANT CLS VRF
remarks	LocalPref 150: - GRNET as backup in dual homed customers
remarks	LocalPref 140: - GEANT IAS VRF
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; }
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; }
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; }
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); }
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

Showing results for AS5408 as of 2025-03-27 21:00:00 UTC