Hi Matt, thank you - tested, but not fully solved. IPv4 icmp works fine IPv6 icmp
[2a01:500:10::1/64host1]=>ether=>[host2-Vpp+LinuxCP 2a01:500:10::2/64] host2=>host1 new issue occur, ttl change to 255 after few icmp6, example below host1=>host2 works now fine Regards Petr 64 bytes from 2a01:500:10::1: icmp_seq=12 ttl=64 time=0.269 ms > 64 bytes from 2a01:500:10::1: icmp_seq=13 ttl=64 time=0.213 ms > 64 bytes from 2a01:500:10::1: icmp_seq=14 ttl=64 time=0.239 ms > 64 bytes from 2a01:500:10::1: icmp_seq=15 ttl=64 time=0.210 ms > 64 bytes from 2a01:500:10::1: icmp_seq=16 ttl=64 time=5.28 ms > 64 bytes from 2a01:500:10::1: icmp_seq=17 ttl=64 time=0.240 ms > 64 bytes from 2a01:500:10::1: icmp_seq=18 ttl=255 time=0.268 ms > 64 bytes from 2a01:500:10::1: icmp_seq=19 ttl=255 time=0.210 ms > 64 bytes from 2a01:500:10::1: icmp_seq=20 ttl=255 time=0.276 ms > 64 bytes from 2a01:500:10::1: icmp_seq=21 ttl=255 time=0.484 ms > 64 bytes from 2a01:500:10::1: icmp_seq=22 ttl=255 time=3.87 ms > 64 bytes from 2a01:500:10::1: icmp_seq=23 ttl=255 time=9.34 ms > po 11. 10. 2021 v 21:54 odesílatel Matthew Smith <mgsm...@netgate.com> napsal: > > Hi Petr, > > I don't think it is related to patch 31122, this seems to happen whether > you are using that patch or not. Both ip4-icmp-echo-request and > ip6-icmp-echo-request set outbound echo replies to have a TTL/hop-limit of > 64. The IPv4 node sets the VNET_BUFFER_F_LOCALLY_ORIGINATED flag on the > packets it sends but the IPv6 node neglects to do this. Setting that flag > will prevent a rewrite node from decrementing the TTL/hop-limit later on. > > Here's a patch which sets the flag for outbound IPv6 echo replies - > https://gerrit.fd.io/r/c/vpp/+/34040. Can you please test it and report > whether it solves the problem? > > Thanks, > -Matt > > > On Mon, Oct 11, 2021 at 1:03 PM Petr Boltík <petr.bol...@gmail.com> wrote: > >> Hi, >> I have found an issue with with linux-cp patch 31122. >> [192.168.15.1/24 host1]=>ether=>[host2-Vpp+LinuxCP 192.168.15.2/24] >> ipv4 icmp TTL >> host2=>host1 TTL64 >> host1=>host2 TTL64 >> >> ipv6 icmp TTL: >> host2=>host1 TTL64 >> host1 =>host2 TTL63 (there should be the same increasing TTL mechanism as >> in the ipv4) >> >> Thanks for report this message to the right hands. >> Regards Petr >> >> >> >>
-=-=-=-=-=-=-=-=-=-=-=- Links: You receive all messages sent to this group. View/Reply Online (#20312): https://lists.fd.io/g/vpp-dev/message/20312 Mute This Topic: https://lists.fd.io/mt/86243713/21656 Group Owner: vpp-dev+ow...@lists.fd.io Unsubscribe: https://lists.fd.io/g/vpp-dev/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
