Date: Mon, 17 Feb 2025 06:20:08 +0000 From: bugzilla-noreply@freebsd.org To: net@FreeBSD.org Subject: [Bug 284857] wg(4): IPv4 packet with IPv6 nexthop not forwarded Message-ID: <bug-284857-7501@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D284857 Bug ID: 284857 Summary: wg(4): IPv4 packet with IPv6 nexthop not forwarded Product: Base System Version: 15.0-CURRENT Hardware: Any OS: Any Status: New Severity: Affects Only Me Priority: --- Component: kern Assignee: net@FreeBSD.org Reporter: lexi@hemlock.eden.le-fay.org using src ~f5aff1871d3273b3cd3621ea5d3e37cdd807e66f on amd64. example Ethernet route: # ifconfig igc3 igc3: flags=3D1008843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST,LOWER_UP> metr= ic 0 mtu 1500 description: fuchsia =20=20=20=20=20=20=20 options=3D4e420bb<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,JUMBO_MTU,VLAN_HWCS= UM,WOL_MAGIC,VLAN_HWTSO,RXCSUM_IPV6,TXCSUM_IPV6,HWSTATS,MEXTPG> ether 207c.14f3.d8f5 inet6 fe80::1%igc3/64 scopeid 0x4 media: Ethernet autoselect (1000baseT <full-duplex>) status: active nd6 options=3D1<PERFORMNUD> # route -n get 81.187.47.195 route to: 81.187.47.195 destination: 81.187.47.195 gateway: fe80::2%igc3 fib: 0 interface: igc3 flags: <UP,GATEWAY,HOST,DONE> recvpipe sendpipe ssthresh rtt,msec mtu weight expire 0 0 0 0 1500 1 0=20 ping works: # ping -S 81.187.47.196 81.187.47.195 PING 81.187.47.195 (81.187.47.195) from 81.187.47.196: 56 data bytes 64 bytes from 81.187.47.195: icmp_seq=3D0 ttl=3D64 time=3D0.318 ms example Wireguard route: # ifconfig wg1 wg1: flags=3D10080c1<UP,RUNNING,NOARP,MULTICAST,LOWER_UP> metric 0 mtu 1420 description: yarrow options=3D80000<LINKSTATE> inet6 fe80::1%wg1/64 scopeid 0xf groups: wg tunnelfib: 1 nd6 options=3D101<PERFORMNUD,NO_DAD> # route -n get 46.235.229.111 route to: 46.235.229.111 destination: 46.235.229.111 gateway: fe80::2%wg1 fib: 0 interface: wg1 flags: <UP,GATEWAY,HOST,DONE> recvpipe sendpipe ssthresh rtt,msec mtu weight expire 0 0 0 0 1420 1 0=20 ping doesn't work: # ping -S 81.187.47.196 46.235.229.111 PING 46.235.229.111 (46.235.229.111) from 81.187.47.196: 56 data bytes ping: sendto: Address family not supported by protocol family ping: sendto: Address family not supported by protocol family ping: sendto: Address family not supported by protocol family the wg interface is configured with "allowed ips: ::/0, 0.0.0.0/0" and is running over an IPv6 transport. traffic forwarded via this system is also affected: any traffic via this ro= ute is silently dropped. --=20 You are receiving this mail because: You are the assignee for the bug.=
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