https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=292807
Bug ID: 292807
Summary: IPv6 loopback ::1 cannot respond to requests sourced
from another interface address
Product: Base System
Version: 16.0-CURRENT
Hardware: Any
OS: Any
Status: New
Severity: Affects Many People
Priority: ---
Component: kern
Assignee: [email protected]
Reporter: [email protected]
Sourcing an IPv6 request from an interface address not on loopback fails when
the destination is ::1. In the following example both 10.0.5.1 and fc00::1 are
assigned to ix0:
$ ping -c 1 -S 10.0.5.1 127.0.0.1
PING 127.0.0.1 (127.0.0.1) from 10.0.5.1: 56 data bytes
64 bytes from 127.0.0.1: icmp_seq=0 ttl=64 time=0.358 ms
--- 127.0.0.1 ping statistics ---
1 packets transmitted, 1 packets received, 0.0% packet loss
round-trip min/avg/max/stddev = 0.358/0.358/0.358/0.000 ms
$ ping6 -c 1 -S fc00::1 ::1
PING(56=40+8+8 bytes) fc00::1 --> ::1
--- ::1 ping statistics ---
1 packets transmitted, 0 packets received, 100.0% packet loss
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