Date: Sun, 30 Jul 2023 03:52:27 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 272809] gre interfaces, tunnelfib is ignored Message-ID: <bug-272809-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D272809 Bug ID: 272809 Summary: gre interfaces, tunnelfib is ignored Product: Base System Version: 13.2-RELEASE Hardware: amd64 OS: Any Status: New Severity: Affects Some People Priority: --- Component: kern Assignee: bugs@FreeBSD.org Reporter: dinoex@FreeBSD.org I am unsing an IPv6 tunnel over gre My setup works with FreeBSD-13.1 Host <-> Gateway <-> gre0 <-> Server After Updating the gateway to FreeBSD-13.2 the routing over the tunnel failed. Testing with tcpdump: I see the response packages are visible on interface em0 instead on interfa= ce vlan3. It seems to me that "tunnelfib" is no longer evaluated. To verify this I added an line to /etc/pf.conf: pass in to 2XXX:XXXX:10::/64 rtable 3 no state With this workaround in place the routing is working again. Please look into this issue. Diagnostics: # ifconfig gre0 gre0: flags=3D8051<UP,POINTOPOINT,RUNNING,MULTICAST> metric 0 mtu 1476 description: f2 options=3D80000<LINKSTATE> tunnel inet X.X.X.15 --> X.X.X.2 inet6 fe80::230:48ff:fecf:bcd0%gre0 prefixlen 64 scopeid 0x4 groups: gre tunnelfib: 3 nd6 options=3D21<PERFORMNUD,AUTO_LINKLOCAL> # setfib 3 netstat -nr6 Routing tables (fib: 3) Internet6: Destination Gateway Flags N= etif Expire ::/96 ::1 URS = lo0 default link#4 US = gre0 ::1 link#3 UHS = lo0 ::ffff:0.0.0.0/96 ::1 URS = lo0 2XXX:XXXX:10::/64 link#6 U v= lan3 2XXX:XXXX:10::1 link#6 UHS = lo0 2XXX:XXXX:10::15 link#6 UHS = lo0 fe80::/10 ::1 URS = lo0 fe80::%vlan3/64 link#6 U v= lan3 fe80::230:48ff:fecf:bcd0%vlan3 link#6 UHS = lo0 ff02::/16 ::1 URS = lo0 --=20 You are receiving this mail because: You are the assignee for the bug.=
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