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It could also be an ISP leaking a loopback identifier into their routes. A lot of ISP's will give their BGP routers lo0 interfaces named things like 1.1.1.1 and
by youdontknowtho 8y ago
It could also be an ISP leaking a loopback identifier into their routes. A lot of ISP's will give their BGP routers lo0 interfaces named things like 1.1.1.1 and 2.2.2.2. It serves as a label and not as an address.
It's been a while, but I can't count the number of times that I've seen that.
- jlgaddis 8y agoIf that were the case, they would have been advertising a /32 (which, hopefully, would have been dropped -- or, the least, not redistributed) instead of a /24.