Поиск префикса BGP

Введите префикс (или отдельный адрес). Ответ из нашей ежедневной копии глобальной таблицы маршрутизации.

Примеры:

111.172.0.0/14

Взгляд одного коллектора (APNIC). Маршрут, отфильтрованный до него, не показывается.

Анонсирован точно

111.172.0.0/14AS4134No.31,Jin-rong StreetRPKI Действителен111.172.0.0

Регистратура: APNIC · Китай · 22 мая 2009 г.
Выделенный блок: 111.172.0.0 – 111.175.255.255

Покрывающие маршруты

Его не покрывает ни один менее специфичный маршрут.

Более специфичные маршруты

Более специфичных: 23 от исходных AS: 5

111.172.0.0/16AS137266CHINATELECOM Hubei province Wuhan 5G networkRPKI Действителен111.172.0.0
111.172.0.0/24AS58563CHINANET Hubei province networkRPKI Действителен111.172.0.0
111.172.122.0/24AS137266CHINATELECOM Hubei province Wuhan 5G networkRPKI Действителен111.172.122.0
111.172.134.0/24AS137266CHINATELECOM Hubei province Wuhan 5G networkRPKI Действителен111.172.134.0
111.172.192.0/22AS138982Hubei Jiangxia IDCRPKI Действителен111.172.192.0
111.172.195.0/24AS138982Hubei Jiangxia IDCRPKI Действителен111.172.195.0
111.172.196.0/22AS138982Hubei Jiangxia IDCRPKI Действителен111.172.196.0
111.172.204.0/24AS138982Hubei Jiangxia IDCRPKI Действителен111.172.204.0
111.172.208.0/22AS58563CHINANET Hubei province networkRPKI Действителен111.172.208.0
111.172.216.0/22AS138982Hubei Jiangxia IDCRPKI Действителен111.172.216.0
111.172.224.0/21AS138982Hubei Jiangxia IDCRPKI Действителен111.172.224.0
111.172.232.0/22AS138982Hubei Jiangxia IDCRPKI Действителен111.172.232.0
111.172.236.0/22AS138982Hubei Jiangxia IDCRPKI Действителен111.172.236.0
111.172.240.0/20AS138982Hubei Jiangxia IDCRPKI Действителен111.172.240.0
111.173.80.0/22AS148981China TelecomRPKI Действителен111.173.80.0
111.173.89.0/24AS148981China TelecomRPKI Действителен111.173.89.0
111.173.104.0/22AS148981China TelecomRPKI Действителен111.173.104.0
111.173.116.0/22AS148981China TelecomRPKI Действителен111.173.116.0
111.174.0.0/20AS136194Huangshi, Hubei Province, P.R.China.RPKI Действителен111.174.0.0
111.174.60.0/22AS136194Huangshi, Hubei Province, P.R.China.RPKI Действителен111.174.60.0
111.175.0.0/16AS137266CHINATELECOM Hubei province Wuhan 5G networkRPKI Действителен111.175.0.0
111.175.40.0/22AS137266CHINATELECOM Hubei province Wuhan 5G networkRPKI Действителен111.175.40.0
111.175.60.0/22AS137266CHINATELECOM Hubei province Wuhan 5G networkRPKI Действителен111.175.60.0

Этот текст пока недоступен на языке «русский». До публикации перевода он показан на языке «английский».

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.

Частые вопросы

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.

Частые вопросы

См. также