[Bug 233535] Machines lost ping6 after adding same IPv6 address

[bugzilla-noreply at freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=233535

--- Comment #4 from Slava Shwartsman <slavash at FreeBSD.org> ---
(In reply to Conrad Meyer from comment #1)
Same issue appeared when setting the prefix:
HOST A: ifconfig igb0 inet6 2002::1/64
HOST B: ifconfig igb0 inet6 2002::2/64

# ping6 2002::2
PING6(56=40+8+8 bytes) 2002::1 --> 2002::2
16 bytes from 2002::2, icmp_seq=0 hlim=64 time=0.266 ms
16 bytes from 2002::2, icmp_seq=1 hlim=64 time=0.087 ms
^C
--- 2002::2 ping6 statistics ---
2 packets transmitted, 2 packets received, 0.0% packet loss
round-trip min/avg/max/std-dev = 0.087/0.176/0.266/0.090 ms
# ifconfig igb0 inet6 2002::1/64
# ping6 2002::2
PING6(56=40+8+8 bytes) fe80::ec4:7aff:fea8:b7f6%igb0 --> 2002::2
^C
--- 2002::2 ping6 statistics ---
54 packets transmitted, 0 packets received, 100.0% packet loss

# netstat -rn
Routing tables

Internet:
Destination        Gateway            Flags     Netif Expire
default            10.209.52.1        UGS        igb0
10.209.52.0/22     link#1             U          igb0
10.209.52.157      link#1             UHS         lo0
127.0.0.1          link#3             UH          lo0

Internet6:
Destination                       Gateway                       Flags     Netif
Expire
::/96                             ::1                           UGRS        lo0
::1                               link#3                        UH          lo0
::ffff:0.0.0.0/96                 ::1                           UGRS        lo0
2002::/64                         link#1                        U          igb0
2002::1                           link#1                        UHS         lo0
fe80::/10                         ::1                           UGRS        lo0
fe80::%igb0/64                    link#1                        U          igb0
fe80::ec4:7aff:fea8:b7f6%igb0     link#1                        UHS         lo0
fe80::%lo0/64                     link#3                        U           lo0
fe80::1%lo0                       link#3                        UHS         lo0
ff02::/16                         ::1                           UGRS        lo0


(In reply to Andrey V. Elsukov from comment #3)
I would expect that ping will continue to work.

-- 
You are receiving this mail because:
You are the assignee for the bug.