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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:

119.120.0.0/13

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

注册机构
APNIC · 中国 · 2008年2月7日
分配的地址块
119.120.0.0 – 119.127.255.255

覆盖路由

0

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 46 条更具体路由
  • 119.120.192.0/18AS140311CHINATELECOM-GUANGDONG-JIANGMEN-5G-NETWORK CHINATELECOM Guangdong province Jiangmen 5G networkRPKI 有效119.120.192.0
  • 119.121.0.0/17AS4809CHINATELECOM-CORE-WAN-CN2 China Telecom Next Generation Carrier NetworkRPKI 有效119.121.0.0
  • 119.121.63.0/24AS140308CHINATELECOM-GUANGDONG-ZHUHAI-5G-NETWORK CHINATELECOM Guangdong province Zhuhai 5G networkRPKI 有效119.121.63.0
  • 119.121.64.0/23AS140308CHINATELECOM-GUANGDONG-ZHUHAI-5G-NETWORK CHINATELECOM Guangdong province Zhuhai 5G networkRPKI 有效119.121.64.0
  • 119.121.66.0/24AS140308CHINATELECOM-GUANGDONG-ZHUHAI-5G-NETWORK CHINATELECOM Guangdong province Zhuhai 5G networkRPKI 有效119.121.66.0
  • 119.121.67.0/24AS140311CHINATELECOM-GUANGDONG-JIANGMEN-5G-NETWORK CHINATELECOM Guangdong province Jiangmen 5G networkRPKI 有效119.121.67.0
  • 119.121.68.0/23AS140311CHINATELECOM-GUANGDONG-JIANGMEN-5G-NETWORK CHINATELECOM Guangdong province Jiangmen 5G networkRPKI 有效119.121.68.0
  • 119.121.95.0/24AS140319CHINATELECOM-GUANGDONG-QINGYUAN-5G-NETWORK CHINATELECOM Guangdong province Qingyuan 5G networkRPKI 有效119.121.95.0
  • 119.121.96.0/23AS140319CHINATELECOM-GUANGDONG-QINGYUAN-5G-NETWORK CHINATELECOM Guangdong province Qingyuan 5G networkRPKI 有效119.121.96.0
  • 119.121.98.0/24AS140319CHINATELECOM-GUANGDONG-QINGYUAN-5G-NETWORK CHINATELECOM Guangdong province Qingyuan 5G networkRPKI 有效119.121.98.0
  • 119.121.109.0/24AS136199CHINANET-GUANGDONG-YUEDONG-MAN CHINANET Guangdong province Yuedong MAN networkRPKI 有效119.121.109.0
  • 119.121.110.0/23AS136199CHINANET-GUANGDONG-YUEDONG-MAN CHINANET Guangdong province Yuedong MAN networkRPKI 有效119.121.110.0
  • 119.121.112.0/23AS136199CHINANET-GUANGDONG-YUEDONG-MAN CHINANET Guangdong province Yuedong MAN networkRPKI 有效119.121.112.0
  • 119.121.114.0/24AS136199CHINANET-GUANGDONG-YUEDONG-MAN CHINANET Guangdong province Yuedong MAN networkRPKI 有效119.121.114.0
  • 119.121.187.0/24AS140309CHINATELECOM-GUANGDONG-ZHONGSHAN-5G-NETWORK CHINATELECOM Guangdong province Zhongshan 5G networkRPKI 无 ROA119.121.187.0
  • 119.121.188.0/23AS140309CHINATELECOM-GUANGDONG-ZHONGSHAN-5G-NETWORK CHINATELECOM Guangdong province Zhongshan 5G networkRPKI 无 ROA119.121.188.0
  • 119.121.190.0/24AS140309CHINATELECOM-GUANGDONG-ZHONGSHAN-5G-NETWORK CHINATELECOM Guangdong province Zhongshan 5G networkRPKI 无 ROA119.121.190.0
  • 119.121.191.0/24AS140308CHINATELECOM-GUANGDONG-ZHUHAI-5G-NETWORK CHINATELECOM Guangdong province Zhuhai 5G networkRPKI 有效119.121.191.0
  • 119.121.192.0/23AS140308CHINATELECOM-GUANGDONG-ZHUHAI-5G-NETWORK CHINATELECOM Guangdong province Zhuhai 5G networkRPKI 有效119.121.192.0
  • 119.121.194.0/24AS140308CHINATELECOM-GUANGDONG-ZHUHAI-5G-NETWORK CHINATELECOM Guangdong province Zhuhai 5G networkRPKI 有效119.121.194.0
  • 119.121.195.0/24AS140311CHINATELECOM-GUANGDONG-JIANGMEN-5G-NETWORK CHINATELECOM Guangdong province Jiangmen 5G networkRPKI 有效119.121.195.0
  • 119.121.196.0/23AS140311CHINATELECOM-GUANGDONG-JIANGMEN-5G-NETWORK CHINATELECOM Guangdong province Jiangmen 5G networkRPKI 有效119.121.196.0
  • 119.121.219.0/24AS140318CHINATELECOM-GUANGDONG-HEYUAN-5G-NETWORK CHINATELECOM Guangdong province Heyuan 5G networkRPKI 无 ROA119.121.219.0
  • 119.121.220.0/23AS140318CHINATELECOM-GUANGDONG-HEYUAN-5G-NETWORK CHINATELECOM Guangdong province Heyuan 5G networkRPKI 无 ROA119.121.220.0
  • 119.121.222.0/24AS140318CHINATELECOM-GUANGDONG-HEYUAN-5G-NETWORK CHINATELECOM Guangdong province Heyuan 5G networkRPKI 无 ROA119.121.222.0
  • 119.121.223.0/24AS140319CHINATELECOM-GUANGDONG-QINGYUAN-5G-NETWORK CHINATELECOM Guangdong province Qingyuan 5G networkRPKI 有效119.121.223.0
  • 119.121.224.0/23AS140319CHINATELECOM-GUANGDONG-QINGYUAN-5G-NETWORK CHINATELECOM Guangdong province Qingyuan 5G networkRPKI 有效119.121.224.0
  • 119.121.226.0/24AS140319CHINATELECOM-GUANGDONG-QINGYUAN-5G-NETWORK CHINATELECOM Guangdong province Qingyuan 5G networkRPKI 有效119.121.226.0
  • 119.121.234.0/23AS140320CHINATELECOM-GUANGDONG-SHANWEI-5G-NETWORK CHINATELECOM Guangdong province Shanwei 5G networkRPKI 无 ROA119.121.234.0
  • 119.121.236.0/24AS140320CHINATELECOM-GUANGDONG-SHANWEI-5G-NETWORK CHINATELECOM Guangdong province Shanwei 5G networkRPKI 无 ROA119.121.236.0
  • 119.121.237.0/24AS136199CHINANET-GUANGDONG-YUEDONG-MAN CHINANET Guangdong province Yuedong MAN networkRPKI 有效119.121.237.0
  • 119.121.238.0/23AS136199CHINANET-GUANGDONG-YUEDONG-MAN CHINANET Guangdong province Yuedong MAN networkRPKI 有效119.121.238.0
  • 119.121.240.0/23AS136199CHINANET-GUANGDONG-YUEDONG-MAN CHINANET Guangdong province Yuedong MAN networkRPKI 有效119.121.240.0
  • 119.121.242.0/24AS136199CHINANET-GUANGDONG-YUEDONG-MAN CHINANET Guangdong province Yuedong MAN networkRPKI 有效119.121.242.0
  • 119.124.176.0/22AS140319CHINATELECOM-GUANGDONG-QINGYUAN-5G-NETWORK CHINATELECOM Guangdong province Qingyuan 5G networkRPKI 有效119.124.176.0
  • 119.124.180.0/22AS140319CHINATELECOM-GUANGDONG-QINGYUAN-5G-NETWORK CHINATELECOM Guangdong province Qingyuan 5G networkRPKI 有效119.124.180.0
  • 119.124.184.0/22AS140319CHINATELECOM-GUANGDONG-QINGYUAN-5G-NETWORK CHINATELECOM Guangdong province Qingyuan 5G networkRPKI 有效119.124.184.0
  • 119.124.188.0/22AS140319CHINATELECOM-GUANGDONG-QINGYUAN-5G-NETWORK CHINATELECOM Guangdong province Qingyuan 5G networkRPKI 有效119.124.188.0
  • 119.124.192.0/21AS140319CHINATELECOM-GUANGDONG-QINGYUAN-5G-NETWORK CHINATELECOM Guangdong province Qingyuan 5G networkRPKI 有效119.124.192.0
  • 119.124.200.0/21AS140319CHINATELECOM-GUANGDONG-QINGYUAN-5G-NETWORK CHINATELECOM Guangdong province Qingyuan 5G networkRPKI 有效119.124.200.0
  • 119.124.208.0/21AS140319CHINATELECOM-GUANGDONG-QINGYUAN-5G-NETWORK CHINATELECOM Guangdong province Qingyuan 5G networkRPKI 有效119.124.208.0
  • 119.124.216.0/21AS140319CHINATELECOM-GUANGDONG-QINGYUAN-5G-NETWORK CHINATELECOM Guangdong province Qingyuan 5G networkRPKI 有效119.124.216.0
  • 119.124.224.0/21AS140319CHINATELECOM-GUANGDONG-QINGYUAN-5G-NETWORK CHINATELECOM Guangdong province Qingyuan 5G networkRPKI 有效119.124.224.0
  • 119.124.232.0/21AS140319CHINATELECOM-GUANGDONG-QINGYUAN-5G-NETWORK CHINATELECOM Guangdong province Qingyuan 5G networkRPKI 有效119.124.232.0
  • 119.124.240.0/21AS140319CHINATELECOM-GUANGDONG-QINGYUAN-5G-NETWORK CHINATELECOM Guangdong province Qingyuan 5G networkRPKI 有效119.124.240.0
  • 119.124.248.0/21AS140319CHINATELECOM-GUANGDONG-QINGYUAN-5G-NETWORK CHINATELECOM Guangdong province Qingyuan 5G networkRPKI 有效119.124.248.0

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。

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