Hello, Ottavio Caruso, le mar. 14 juil. 2020 12:15:48 +0100, a ecrit: > I cannot get traceroute to work with standard udp from any of my > guests. > > $ traceroute 8.8.8.8 > traceroute to 8.8.8.8 (8.8.8.8), 64 hops max, 40 byte packets > 1 * * *
That was because - libslirp was not forwarding the ttl value, thus always set to 64 hops - libslirp was not reporting icmp errors. I had a try at both, and that indeed seems to be fixing the issue: https://gitlab.freedesktop.org/slirp/libslirp/-/merge_requests/48 https://gitlab.freedesktop.org/slirp/libslirp/-/merge_requests/49 > Any clues? Is this intended behaviour? Any workarounds that don't > involve tap/tun/bridges? Not without updating libslirp with the abovementioned patches. Samuel