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:
206.39.0.0/16
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
- 206.39.0.0/16AS721United States Department of Defense (DoD)RPKI 无 ROA206.39.0.0
- 注册机构
- ARIN · 美国 · 1995年5月30日
- 分配的地址块
- 206.36.0.0 – 206.39.255.255
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 14 个来源 AS 的 31 条更具体路由
- 206.39.0.0/23AS56United States Department of Defense (DoD)RPKI 无 ROA206.39.0.0
- 206.39.10.0/24AS5180United States Department of Defense (DoD)RPKI 无 ROA206.39.10.0
- 206.39.11.0/24AS5180United States Department of Defense (DoD)RPKI 无 ROA206.39.11.0
- 206.39.12.0/24AS5180United States Department of Defense (DoD)RPKI 无 ROA206.39.12.0
- 206.39.13.0/24AS5180United States Department of Defense (DoD)RPKI 无 ROA206.39.13.0
- 206.39.14.0/24AS1556United States Department of Defense (DoD)RPKI 无 ROA206.39.14.0
- 206.39.16.0/24AS1540Headquarters, USAISCRPKI 无 ROA206.39.16.0
- 206.39.28.0/24AS1554United States Department of Defense (DoD)RPKI 无 ROA206.39.28.0
- 206.39.32.0/23AS1540Headquarters, USAISCRPKI 无 ROA206.39.32.0
- 206.39.34.0/24AS1540Headquarters, USAISCRPKI 无 ROA206.39.34.0
- 206.39.35.0/24AS1556United States Department of Defense (DoD)RPKI 无 ROA206.39.35.0
- 206.39.36.0/24AS1563United States Department of Defense (DoD)RPKI 无 ROA206.39.36.0
- 206.39.38.0/24AS1562United States Department of Defense (DoD)RPKI 无 ROA206.39.38.0
- 206.39.39.0/24AS1561United States Department of Defense (DoD)RPKI 无 ROA206.39.39.0
- 206.39.40.0/24AS1540Headquarters, USAISCRPKI 无 ROA206.39.40.0
- 206.39.41.0/24AS1540Headquarters, USAISCRPKI 无 ROA206.39.41.0
- 206.39.56.0/24AS391Air Force Systems NetworkingRPKI 无 ROA206.39.56.0
- 206.39.58.0/24AS391Air Force Systems NetworkingRPKI 无 ROA206.39.58.0
- 206.39.60.0/24AS56United States Department of Defense (DoD)RPKI 无 ROA206.39.60.0
- 206.39.62.0/24AS56United States Department of Defense (DoD)RPKI 无 ROA206.39.62.0
- 206.39.63.0/24AS56United States Department of Defense (DoD)RPKI 无 ROA206.39.63.0
- 206.39.152.0/23AS1540Headquarters, USAISCRPKI 无 ROA206.39.152.0
- 206.39.153.0/24AS1540Headquarters, USAISCRPKI 无 ROA206.39.153.0
- 206.39.155.0/24AS1540Headquarters, USAISCRPKI 无 ROA206.39.155.0
- 206.39.172.0/24AS367United States Department of Defense (DoD)RPKI 无 ROA206.39.172.0
- 206.39.200.0/24AS5133United States Department of Defense (DoD)RPKI 无 ROA206.39.200.0
- 206.39.201.0/24AS5133United States Department of Defense (DoD)RPKI 无 ROA206.39.201.0
- 206.39.203.0/24AS687United States Department of Defense (DoD)RPKI 无 ROA206.39.203.0
- 206.39.244.0/24AS3474United States Department of Defense (DoD)RPKI 无 ROA206.39.244.0
- 206.39.245.0/24AS3474United States Department of Defense (DoD)RPKI 无 ROA206.39.245.0
- 206.39.250.0/24AS27064United States Department of Defense (DoD)RPKI 无 ROA206.39.250.0
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 62.103.0.0/16 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。