On 2013-05-29 13:56, Brian E Carpenter wrote: > Isn't it possible for a ULA to show up in a traceroute because it's > used on an internal interface by a transit network?
Possible: yes, bad idea: definitely When uRPF is enabled or other source verification checks are being done, one will never have a valid path to that address and thus one cannot source packets, even ICMP, from that address. > Your packets > may not even have crossed that interface of the router concerned. > > There's also a loop between hops 6 and 7, isn't there? That looks more like multiple hops through the same box, which likely indicates other issues with that setup. Greets, Jeroen
