Поиск префикса BGP

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

Примеры:

74.2.0.0/16

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

Анонсирован точно

74.2.0.0/16AS3257GTT Communications Inc.RPKI Не найдено74.2.0.0

Регистратура: ARIN · Соединенные Штаты · 20 дек. 2005 г.
Выделенный блок: 74.2.0.0 – 74.2.255.255

Покрывающие маршруты

Его не покрывает ни один менее специфичный маршрут.

Более специфичные маршруты

Более специфичных: 50 от исходных AS: 19

74.2.0.0/22AS3257GTT Communications Inc.RPKI Действителен74.2.0.0
74.2.4.0/24AS197860Haruka Network LimitedRPKI Действителен74.2.4.0
74.2.5.0/24AS212669Karolio IT paslaugos, UABRPKI Действителен74.2.5.0
74.2.6.0/24AS6079RCNRPKI Действителен74.2.6.0
74.2.7.0/24AS6079RCNRPKI Действителен74.2.7.0
74.2.8.0/21AS3257GTT Communications Inc.RPKI Действителен74.2.8.0
74.2.20.0/22AS20115Charter Communications LLCRPKI Действителен74.2.20.0
74.2.28.0/22AS11427Charter Communications IncRPKI Действителен74.2.28.0
74.2.32.0/22AS137830Wire IT ServicesRPKI Действителен74.2.32.0
74.2.36.0/22AS20115Charter Communications LLCRPKI Действителен74.2.36.0
74.2.40.0/22AS137830Wire IT ServicesRPKI Действителен74.2.40.0
74.2.44.0/22AS3257GTT Communications Inc.RPKI Действителен74.2.44.0
74.2.48.0/22AS137830Wire IT ServicesRPKI Действителен74.2.48.0
74.2.52.0/24AS14618Amazon.com, Inc.RPKI Действителен74.2.52.0
74.2.53.0/24AS14618Amazon.com, Inc.RPKI Действителен74.2.53.0
74.2.54.0/24AS16509Amazon.com, Inc.RPKI Действителен74.2.54.0
74.2.55.0/24AS14618Amazon.com, Inc.RPKI Действителен74.2.55.0
74.2.56.0/22AS3257GTT Communications Inc.RPKI Действителен74.2.56.0
74.2.60.0/22AS137830Wire IT ServicesRPKI Действителен74.2.60.0
74.2.64.0/19AS11427Charter Communications IncRPKI Действителен74.2.64.0
74.2.96.0/24AS393446AlphaCore Network LLCRPKI Действителен74.2.96.0
74.2.98.0/23AS402732SMITH'SRPKI Действителен74.2.98.0
74.2.102.0/23AS174Cogent Communications, LLCRPKI Действителен74.2.102.0
74.2.116.0/22AS3257GTT Communications Inc.RPKI Действителен74.2.116.0
74.2.120.0/21AS20115Charter Communications LLCRPKI Действителен74.2.120.0
74.2.128.0/19AS6079RCNRPKI Действителен74.2.128.0
74.2.160.0/24AS396073Majestic Hosting Solutions, LLCRPKI Действителен74.2.160.0
74.2.161.0/24AS3257GTT Communications Inc.RPKI Действителен74.2.161.0
74.2.164.0/24AS3257GTT Communications Inc.RPKI Действителен74.2.164.0
74.2.165.0/24AS5650Frontier Communications of America, Inc.RPKI Действителен74.2.165.0
74.2.166.0/24AS3257GTT Communications Inc.RPKI Действителен74.2.166.0
74.2.176.0/22AS3257GTT Communications Inc.RPKI Действителен74.2.176.0
74.2.180.0/22AS399989ULTRA ONERPKI Действителен74.2.180.0
74.2.184.0/23AS174Cogent Communications, LLCRPKI Действителен74.2.184.0
74.2.186.0/24AS399275Solid Systems LLCRPKI Действителен74.2.186.0
74.2.187.0/24AS399275Solid Systems LLCRPKI Действителен74.2.187.0
74.2.188.0/22AS3257GTT Communications Inc.RPKI Действителен74.2.188.0
74.2.208.0/22AS137830Wire IT ServicesRPKI Действителен74.2.208.0
74.2.212.0/22AS137830Wire IT ServicesRPKI Действителен74.2.212.0
74.2.216.0/24AS6079RCNRPKI Действителен74.2.216.0
74.2.218.0/23AS5650Frontier Communications of America, Inc.RPKI Действителен74.2.218.0
74.2.221.0/24AS174Cogent Communications, LLCRPKI Действителен74.2.221.0
74.2.222.0/24AS31898Oracle CorporationRPKI Действителен74.2.222.0
74.2.223.0/24AS397423Tier.Net Technologies LLCRPKI Действителен74.2.223.0
74.2.224.0/24AS3257GTT Communications Inc.RPKI Действителен74.2.224.0
74.2.226.0/23AS3257GTT Communications Inc.RPKI Действителен74.2.226.0
74.2.230.0/23AS2914NTT America, Inc.RPKI Действителен74.2.230.0
74.2.240.0/22AS3257GTT Communications Inc.RPKI Действителен74.2.240.0
74.2.244.0/22AS5650Frontier Communications of America, Inc.RPKI Действителен74.2.244.0
74.2.248.0/21AS20115Charter Communications LLCRPKI Действителен74.2.248.0

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