bgpreport

Network · data from 2026-11-12

AS45576 Tsinghua University

Registry name: CERNET2-TSINGHUA6-AS-AP - Tsinghua University, CN · PeeringDB

0IPv4 routes
4IPv6 routes 0.0% RPKI valid · 25.0% with a route object
0RPKI invalid 0 origin · 0 maxLength
4No ROA 3 with no route object for this origin
0Low visibility seen by under 10% of full-table peers
1Route objects not announced registered with origin AS45576, seen from no peer

Announced routes

Every prefix a peer of the route collectors sees with origin AS45576, things to look at first. Visibility = full-table peers that see it, of 673 (IPv4) and 636 (IPv6) on 75 collectors. Also as routes.csv.
2402:f000:2::/48 No ROA Nonecovered by 2402:f000::/32 634 100% 70
2402:f000:3::/48 No ROA Nonecovered by 2402:f000::/32 634 100% 70
2402:f000:4::/48 No ROA Nonecovered by 2402:f000::/32 634 100% 70
2402:f000::/32 No ROA RIR databaseAPNIC 635 100% 70

AS-SET

AS45576's PeeringDB record names no AS-SET.

Fix list

The changes that would bring RPKI, the IRR and what's announced into line. Some are deliberate (a route object kept for a backup route, say); the network decides. All 8 are in fix.csv.

  • ROA: none4
  • Route object: none3
  • Route object: not announced1
ChangePrefix or setDetailFull-table peers
ROA: none2402:f000:2::/48No ROA covers it. Add a ROA for AS45576, maxLength 48.634 of 636
Route object: none2402:f000:2::/48No route object for it. A route object for 2402:f000::/32 with origin AS45576 covers it (filters allowing more-specifics accept it). Add a route object with origin AS45576 in the RIR database for the space.634 of 636
ROA: none2402:f000:3::/48No ROA covers it. Add a ROA for AS45576, maxLength 48.634 of 636
Route object: none2402:f000:3::/48No route object for it. A route object for 2402:f000::/32 with origin AS45576 covers it (filters allowing more-specifics accept it). Add a route object with origin AS45576 in the RIR database for the space.634 of 636
ROA: none2402:f000:4::/48No ROA covers it. Add a ROA for AS45576, maxLength 48.634 of 636
Route object: none2402:f000:4::/48No route object for it. A route object for 2402:f000::/32 with origin AS45576 covers it (filters allowing more-specifics accept it). Add a route object with origin AS45576 in the RIR database for the space.634 of 636
ROA: none2402:f000::/32No ROA covers it. Add a ROA for AS45576, maxLength 32.635 of 636

Route objects not announced

Route objects with origin AS45576 whose prefix no peer sees AS45576 announce. Many are kept on purpose (backup routes, space announced only in some places).

166.111.0.0/16RADBNo ROA

Routes: the 08:00 UTC snapshots of 2026-11-12 from 75 RIPE RIS and RouteViews collectors. RPKI: our rpki-client run before the snapshot. IRR: the day's dumps of the five RIR databases and RADB's mirrors. The LEVEL3 and IDNIC databases publish no dump and aren't read, so route objects only there count as none.