Ricerca prefisso BGP

Inserisci un prefisso (o un singolo indirizzo). Risposta dalla nostra copia giornaliera della tabella di routing globale.

Esempi:

211.40.0.0/16

La vista di un solo collector (APNIC). Una rotta filtrata prima di raggiungerlo non è elencata.

Annunciato esattamente

211.40.0.0/16AS3786LG DACOM CorporationRPKI Nessun ROA211.40.0.0

Registro: APNIC · Corea del Sud · 8 nov 1999
Blocco assegnato: 211.40.0.0 – 211.40.255.255

Rotte che lo coprono

Nessuna rotta meno specifica lo copre.

Rotte più specifiche

20 più specifiche da 7 AS di origine

211.40.9.0/24AS9319HCN CHUNGBUK CABLE TV SYSTEMSRPKI Nessun ROA211.40.9.0
211.40.10.0/24AS9319HCN CHUNGBUK CABLE TV SYSTEMSRPKI Nessun ROA211.40.10.0
211.40.43.0/24AS9319HCN CHUNGBUK CABLE TV SYSTEMSRPKI Nessun ROA211.40.43.0
211.40.43.0/25AS9319HCN CHUNGBUK CABLE TV SYSTEMSRPKI Nessun ROA211.40.43.0
211.40.48.0/24AS9319HCN CHUNGBUK CABLE TV SYSTEMSRPKI Nessun ROA211.40.48.0
211.40.52.0/24AS9950DACOM-PUBNETPLUSRPKI Nessun ROA211.40.52.0
211.40.52.0/25AS9950DACOM-PUBNETPLUSRPKI Nessun ROA211.40.52.0
211.40.52.128/25AS9950DACOM-PUBNETPLUSRPKI Nessun ROA211.40.52.128
211.40.53.0/24AS9319HCN CHUNGBUK CABLE TV SYSTEMSRPKI Nessun ROA211.40.53.0
211.40.57.0/24AS10185Hana Bank Co.RPKI Nessun ROA211.40.57.0
211.40.67.0/24AS23601tsisRPKI Nessun ROA211.40.67.0
211.40.118.0/24AS55592Korea Data Telecommunication Co., Ltd.RPKI Nessun ROA211.40.118.0
211.40.139.0/24AS9319HCN CHUNGBUK CABLE TV SYSTEMSRPKI Nessun ROA211.40.139.0
211.40.189.0/24AS23601tsisRPKI Nessun ROA211.40.189.0
211.40.190.0/24AS3786LG DACOM CorporationRPKI Nessun ROA211.40.190.0
211.40.195.0/24AS9319HCN CHUNGBUK CABLE TV SYSTEMSRPKI Nessun ROA211.40.195.0
211.40.200.0/23AS9319HCN CHUNGBUK CABLE TV SYSTEMSRPKI Nessun ROA211.40.200.0
211.40.239.0/24AS17862Kangwon National UniversityRPKI Nessun ROA211.40.239.0
211.40.242.0/24AS9319HCN CHUNGBUK CABLE TV SYSTEMSRPKI Nessun ROA211.40.242.0
211.40.248.0/24AS9319HCN CHUNGBUK CABLE TV SYSTEMSRPKI Nessun ROA211.40.248.0

Questo testo non è ancora disponibile in italiano. Viene mostrato in inglese finché non sarà pubblicata una traduzione.

On the internet, routes are announced as prefixes: an autonomous system tells its neighbours via BGP that it can deliver traffic for, say, 144.122.0.0/16 (Middle East Technical University, AS1967). This tool looks a prefix up in our daily copy of the global routing table and shows three things:

Exact announcements: which AS originates exactly this prefix. More than one origin (a MOAS) is normal for anycast services and some multihomed networks, and suspicious otherwise.
Covering routes: less-specific announcements that contain it. Traffic follows the most specific route, so a covering route matters if the more-specific one disappears.
More-specifics: announcements inside it, which may belong to other networks (customers, or a hijack).

Each announced route is also checked against the RPKI: whether a ROA authorises its origin AS.

The table is the view from APNIC’s route collector. Most of the global table is the same from everywhere, but a route that is filtered before it reaches that collector will not appear.

Domande frequenti

Why is my /24 not listed but a /16 is?

Your addresses are announced as part of the larger block, and no one announces the /24 separately. That is the normal case for most customers of a provider.

What is a more-specific hijack?

Someone announces a longer prefix inside your space. Because routers prefer the most specific route, traffic goes to them. RPKI with a strict max length makes such announcements invalid.

Can I enter a single address?

Yes. The tool then shows the most specific announced route that contains it.

Domande frequenti

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