[Bug 233683] IPv6 ND neighbor solicitation messages fail to arrive
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Date: Sun, 27 Feb 2022 02:31:52 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=233683
--- Comment #8 from Paul Webster <paul.g.webster@googlemail.com> ---
(In reply to Bjoern A. Zeeb from comment #7)
HOST:
# ifconfig | grep inet6
inet6 2a01:4f8:190:1183::1:1 prefixlen 64
inet6 ::1 prefixlen 128
inet6 fe80::1%lo0 prefixlen 64 scopeid 0x2
inet6 fe80::5a9c:fcff:fe10:ffe2%bridge102 prefixlen 64 scopeid 0x3
inet6 2a01:4f8:190:1183::102:1 prefixlen 64
inet6 fe80::5a9c:fcff:fe10:fff5%bridge103 prefixlen 64 scopeid 0x4
inet6 2a01:4f8:190:1183::103:1 prefixlen 64
inet6 fe80::5a9c:fcff:fe00:561%bridge104 prefixlen 64 scopeid 0x5
inet6 2a01:4f8:190:1183::104:1 prefixlen 64
inet6 fe80::5a9c:fcff:fe10:ffea%tap1031 prefixlen 64 scopeid 0xb
inet6 fe80::921b:eff:feab:a585%tun50 prefixlen 64 scopeid 0x7
PRIMARY INTERFACE:
# ping6 -c3 -n ff02::1%em0
PING6(56=40+8+8 bytes) 2a01:4f8:190:1183::1:1 --> ff02::1%em0
16 bytes from 2a01:4f8:190:1183::1:1, icmp_seq=0 hlim=64 time=0.089 ms
16 bytes from fe80::1%em0, icmp_seq=0 hlim=64 time=2.475 ms(DUP!)
16 bytes from 2a01:4f8:190:1183::1:1, icmp_seq=1 hlim=64 time=0.095 ms
16 bytes from fe80::1%em0, icmp_seq=1 hlim=64 time=0.643 ms(DUP!)
16 bytes from 2a01:4f8:190:1183::1:1, icmp_seq=2 hlim=64 time=0.029 ms
# ping6 -c3 -n ff02::2%em0
PING6(56=40+8+8 bytes) 2a01:4f8:190:1183::1:1 --> ff02::2%em0
16 bytes from fe80::1%em0, icmp_seq=0 hlim=64 time=0.667 ms
16 bytes from fe80::1%em0, icmp_seq=1 hlim=64 time=0.571 ms
16 bytes from fe80::1%em0, icmp_seq=2 hlim=64 time=0.653 ms
--- ff02::2%em0 ping6 statistics ---
3 packets transmitted, 3 packets received, 0.0% packet loss
round-trip min/avg/max/std-dev = 0.571/0.630/0.667/0.042 ms
Bridge sourced interfaces:
# ping6 -S2a01:4f8:190:1183::102:1 -c3 -n ff02::2%em0
PING6(56=40+8+8 bytes) 2a01:4f8:190:1183::102:1 --> ff02::2%em0
16 bytes from fe80::1%em0, icmp_seq=0 hlim=64 time=0.614 ms
16 bytes from fe80::1%em0, icmp_seq=1 hlim=64 time=0.487 ms
16 bytes from fe80::1%em0, icmp_seq=2 hlim=64 time=0.544 ms
--- ff02::2%em0 ping6 statistics ---
3 packets transmitted, 3 packets received, 0.0% packet loss
round-trip min/avg/max/std-dev = 0.487/0.549/0.614/0.052 ms
# ping6 -S2a01:4f8:190:1183::103:1 -c3 -n ff02::2%em0
PING6(56=40+8+8 bytes) 2a01:4f8:190:1183::103:1 --> ff02::2%em0
16 bytes from fe80::1%em0, icmp_seq=0 hlim=64 time=0.644 ms
16 bytes from fe80::1%em0, icmp_seq=1 hlim=64 time=1.802 ms
16 bytes from fe80::1%em0, icmp_seq=2 hlim=64 time=0.565 ms
--- ff02::2%em0 ping6 statistics ---
3 packets transmitted, 3 packets received, 0.0% packet loss
round-trip min/avg/max/std-dev = 0.565/1.004/1.802/0.565 ms
# ping6 -S2a01:4f8:190:1183::103:1 -c3 -n ff02::2%em0
PING6(56=40+8+8 bytes) 2a01:4f8:190:1183::103:1 --> ff02::2%em0
16 bytes from fe80::1%em0, icmp_seq=0 hlim=64 time=0.714 ms
16 bytes from fe80::1%em0, icmp_seq=1 hlim=64 time=0.674 ms
16 bytes from fe80::1%em0, icmp_seq=2 hlim=64 time=0.578 ms
--- ff02::2%em0 ping6 statistics ---
3 packets transmitted, 3 packets received, 0.0% packet loss
round-trip min/avg/max/std-dev = 0.578/0.655/0.714/0.057 ms
# VM - 1 only there is 4 but they all act the same and they are a mixture of
windows and BSD so lets just stick to BSD for now.
root@sitehost:/var # netstat -rn6
Routing tables
Internet6:
Destination Gateway Flags
Netif Expire
::/96 ::1 UGRS
lo0
default fe80::1%vtnet0 UGS
vtnet0
::1 link#2 UHS
lo0
::ffff:0.0.0.0/96 ::1 UGRS
lo0
2a01:4f8:190:1183::/64 link#1 U
vtnet0
2a01:4f8:190:1183::103:2 link#1 UHS
lo0
fe80::/10 ::1 UGRS
lo0
fe80::%vtnet0/64 link#1 U
vtnet0
fe80::2d3:4dff:febe:3fab%vtnet0 link#1 UHS
lo0
fe80::%lo0/64 link#2 U
lo0
fe80::1%lo0 link#2 UHS
lo0
ff02::/16 ::1 UGRS
lo0
root@sitehost:/var #
root@sitehost:/var # ping6 -c3 -n ff02::1%vtnet0
PING6(56=40+8+8 bytes) fe80::2d3:4dff:febe:3fab%vtnet0 --> ff02::1%vtnet0
16 bytes from fe80::2d3:4dff:febe:3fab%vtnet0, icmp_seq=0 hlim=64
time=0.306 ms
16 bytes from fe80::5a9c:fcff:fe10:fff5%vtnet0, icmp_seq=0 hlim=64
time=3.772 ms(DUP!)
16 bytes from fe80::5a9c:fcff:fe10:ffea%vtnet0, icmp_seq=0 hlim=64
time=6.453 ms(DUP!)
16 bytes from fe80::2d3:4dff:febe:3faa%vtnet0, icmp_seq=0 hlim=64
time=7.261 ms(DUP!)
16 bytes from fe80::2d3:4dff:febe:3faf%vtnet0, icmp_seq=0 hlim=64
time=8.102 ms(DUP!)
16 bytes from fe80::2d3:4dff:febe:3fab%vtnet0, icmp_seq=1 hlim=64
time=0.259 ms
16 bytes from fe80::5a9c:fcff:fe10:fff5%vtnet0, icmp_seq=1 hlim=64
time=1.167 ms(DUP!)
16 bytes from fe80::5a9c:fcff:fe10:ffea%vtnet0, icmp_seq=1 hlim=64
time=4.865 ms(DUP!)
16 bytes from fe80::2d3:4dff:febe:3faf%vtnet0, icmp_seq=1 hlim=64
time=8.328 ms(DUP!)
16 bytes from fe80::2d3:4dff:febe:3faa%vtnet0, icmp_seq=1 hlim=64
time=10.908 ms(DUP!)
16 bytes from fe80::2d3:4dff:febe:3fab%vtnet0, icmp_seq=2 hlim=64
time=0.449 ms
--- ff02::1%vtnet0 ping6 statistics ---
3 packets transmitted, 3 packets received, +8 duplicates, 0.0% packet loss
round-trip min/avg/max/std-dev = 0.259/4.715/10.908/3.610 ms
root@sitehost:/var #
root@sitehost:~ # ping6 -c3 -n ff02::2%vtnet0
PING6(56=40+8+8 bytes) fe80::2d3:4dff:febe:3fab%vtnet0 --> ff02::2%vtnet0
--- ff02::2%vtnet0 ping6 statistics ---
3 packets transmitted, 0 packets received, 100.0% packet loss
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