BGP 前缀查询

输入一个前缀（或单个地址）。由我们每日复制的全球路由表回答。

示例:

204.222.0.0/15

单个采集器（APNIC）的视角。在到达该采集器之前被过滤的路由不会列出。

精确宣告

204.222.0.0/15AS721United States Department of Defense (DoD)RPKI 无 ROA204.222.0.0

注册机构: ARIN · 美国 · 1995年1月5日
分配的地址块: 204.222.0.0 – 204.222.255.255

覆盖路由

没有较不具体的路由覆盖它。

更具体的路由

来自 8 个来源 AS 的 38 条更具体路由

204.222.0.0/22AS27064United States Department of Defense (DoD)RPKI 无 ROA204.222.0.0
204.222.6.0/23AS668United States Department of Defense (DoD)RPKI 无 ROA204.222.6.0
204.222.8.0/23AS668United States Department of Defense (DoD)RPKI 无 ROA204.222.8.0
204.222.64.0/21AS668United States Department of Defense (DoD)RPKI 无 ROA204.222.64.0
204.222.89.0/24AS5180United States Department of Defense (DoD)RPKI 无 ROA204.222.89.0
204.222.176.0/24AS5957United States Department of Defense (DoD)RPKI 无 ROA204.222.176.0
204.222.177.0/24AS5957United States Department of Defense (DoD)RPKI 无 ROA204.222.177.0
204.222.178.0/24AS5957United States Department of Defense (DoD)RPKI 无 ROA204.222.178.0
204.222.179.0/24AS5957United States Department of Defense (DoD)RPKI 无 ROA204.222.179.0
204.222.192.0/21AS27064United States Department of Defense (DoD)RPKI 无 ROA204.222.192.0
204.222.212.0/24AS300United States Department of Defense (DoD)RPKI 无 ROA204.222.212.0
204.222.228.0/23AS5978United States Department of Defense (DoD)RPKI 无 ROA204.222.228.0
204.222.248.0/24AS56United States Department of Defense (DoD)RPKI 无 ROA204.222.248.0
204.222.249.0/24AS56United States Department of Defense (DoD)RPKI 无 ROA204.222.249.0
204.223.8.0/21AS637United States Department of Defense (DoD)RPKI 无 ROA204.223.8.0
204.223.34.0/23AS637United States Department of Defense (DoD)RPKI 无 ROA204.223.34.0
204.223.36.0/22AS637United States Department of Defense (DoD)RPKI 无 ROA204.223.36.0
204.223.40.0/24AS637United States Department of Defense (DoD)RPKI 无 ROA204.223.40.0
204.223.41.0/24AS637United States Department of Defense (DoD)RPKI 无 ROA204.223.41.0
204.223.42.0/23AS637United States Department of Defense (DoD)RPKI 无 ROA204.223.42.0
204.223.44.0/22AS637United States Department of Defense (DoD)RPKI 无 ROA204.223.44.0
204.223.75.0/24AS637United States Department of Defense (DoD)RPKI 无 ROA204.223.75.0
204.223.78.0/23AS637United States Department of Defense (DoD)RPKI 无 ROA204.223.78.0
204.223.80.0/24AS637United States Department of Defense (DoD)RPKI 无 ROA204.223.80.0
204.223.81.0/24AS637United States Department of Defense (DoD)RPKI 无 ROA204.223.81.0
204.223.82.0/23AS637United States Department of Defense (DoD)RPKI 无 ROA204.223.82.0
204.223.84.0/22AS637United States Department of Defense (DoD)RPKI 无 ROA204.223.84.0
204.223.88.0/22AS637United States Department of Defense (DoD)RPKI 无 ROA204.223.88.0
204.223.92.0/23AS637United States Department of Defense (DoD)RPKI 无 ROA204.223.92.0
204.223.94.0/24AS637United States Department of Defense (DoD)RPKI 无 ROA204.223.94.0
204.223.96.0/20AS637United States Department of Defense (DoD)RPKI 无 ROA204.223.96.0
204.223.112.0/21AS637United States Department of Defense (DoD)RPKI 无 ROA204.223.112.0
204.223.126.0/23AS637United States Department of Defense (DoD)RPKI 无 ROA204.223.126.0
204.223.128.0/21AS637United States Department of Defense (DoD)RPKI 无 ROA204.223.128.0
204.223.136.0/21AS637United States Department of Defense (DoD)RPKI 无 ROA204.223.136.0
204.223.144.0/21AS637United States Department of Defense (DoD)RPKI 无 ROA204.223.144.0
204.223.152.0/22AS637United States Department of Defense (DoD)RPKI 无 ROA204.223.152.0
204.223.176.0/24AS637United States Department of Defense (DoD)RPKI 无 ROA204.223.176.0

在互联网上,路由以前缀的形式宣告:一个自治系统通过 BGP 告诉邻居,它可以投递发往例如 193.166.0.0/15 的流量。本工具在我们每日更新的全球路由表副本中查找前缀,并显示三项内容:

精确宣告:哪个 AS 正好起源这个前缀。存在多个起源(MOAS)对任播服务和某些多归属网络来说是正常的,其他情况下则值得怀疑。
覆盖路由:包含该前缀、但不那么具体的宣告。流量遵循最具体的路由;当更具体的路由消失时,覆盖路由才起作用。
更具体的路由:前缀内部的宣告,可能属于其他网络(客户,或者劫持)。

对每条宣告的路由,还会检查 RPKI:是否有 ROA 授权其起源 AS。

该路由表来自 APNIC 路由收集器的视角。全球路由表的大部分从任何地方看都一样,但在到达收集器之前被过滤掉的路由不会出现。

常见问题

为什么我的 /24 不显示,而 /16 却显示?

您的地址是作为更大地址块的一部分宣告的,没有人单独宣告这个 /24。这是大多数运营商客户的正常情况。

什么是更具体前缀劫持?

有人在您的地址空间内宣告一个更长的前缀。由于路由器优先选择最具体的路由,流量就会流向对方。设置严格最大长度的 RPKI 会使这类宣告无效。

可以输入单个地址吗?

可以。工具会显示包含该地址的最具体宣告路由。

常见问题

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