Поиск префикса BGP

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

Примеры:

190.7.0.0/18

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

Анонсирован точно

190.7.0.0/18AS20207Gigared S.A.RPKI Действителен190.7.0.0

Регистратура: LACNIC · Аргентина · 22 мар. 2006 г.
Выделенный блок: 190.7.0.0 – 190.7.31.255

Покрывающие маршруты

Его не покрывает ни один менее специфичный маршрут.

Более специфичные маршруты

Более специфичных: 33 от исходных AS: 1

190.7.0.0/19AS20207Gigared S.A.RPKI Действителен190.7.0.0
190.7.0.0/20AS20207Gigared S.A.RPKI Действителен190.7.0.0
190.7.0.0/22AS20207Gigared S.A.RPKI Действителен190.7.0.0
190.7.16.0/24AS20207Gigared S.A.RPKI Действителен190.7.16.0
190.7.17.0/24AS20207Gigared S.A.RPKI Действителен190.7.17.0
190.7.18.0/23AS20207Gigared S.A.RPKI Действителен190.7.18.0
190.7.18.0/24AS20207Gigared S.A.RPKI Действителен190.7.18.0
190.7.19.0/24AS20207Gigared S.A.RPKI Действителен190.7.19.0
190.7.20.0/22AS20207Gigared S.A.RPKI Действителен190.7.20.0
190.7.24.0/23AS20207Gigared S.A.RPKI Действителен190.7.24.0
190.7.26.0/23AS20207Gigared S.A.RPKI Действителен190.7.26.0
190.7.28.0/24AS20207Gigared S.A.RPKI Действителен190.7.28.0
190.7.29.0/24AS20207Gigared S.A.RPKI Действителен190.7.29.0
190.7.30.0/23AS20207Gigared S.A.RPKI Действителен190.7.30.0
190.7.30.0/24AS20207Gigared S.A.RPKI Действителен190.7.30.0
190.7.31.0/24AS20207Gigared S.A.RPKI Действителен190.7.31.0
190.7.32.0/19AS20207Gigared S.A.RPKI Действителен190.7.32.0
190.7.32.0/22AS20207Gigared S.A.RPKI Действителен190.7.32.0
190.7.35.0/24AS20207Gigared S.A.RPKI Действителен190.7.35.0
190.7.36.0/24AS20207Gigared S.A.RPKI Действителен190.7.36.0
190.7.37.0/24AS20207Gigared S.A.RPKI Действителен190.7.37.0
190.7.40.0/22AS20207Gigared S.A.RPKI Действителен190.7.40.0
190.7.44.0/22AS20207Gigared S.A.RPKI Действителен190.7.44.0
190.7.45.0/24AS20207Gigared S.A.RPKI Действителен190.7.45.0
190.7.48.0/21AS20207Gigared S.A.RPKI Действителен190.7.48.0
190.7.48.0/22AS20207Gigared S.A.RPKI Действителен190.7.48.0
190.7.56.0/22AS20207Gigared S.A.RPKI Действителен190.7.56.0
190.7.56.0/23AS20207Gigared S.A.RPKI Действителен190.7.56.0
190.7.57.0/24AS20207Gigared S.A.RPKI Действителен190.7.57.0
190.7.58.0/24AS20207Gigared S.A.RPKI Действителен190.7.58.0
190.7.60.0/24AS20207Gigared S.A.RPKI Действителен190.7.60.0
190.7.61.0/24AS20207Gigared S.A.RPKI Действителен190.7.61.0
190.7.62.0/24AS20207Gigared S.A.RPKI Действителен190.7.62.0

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