[Bug 205368] fails to shut down IPv6 loopback interfaces

[bugzilla-noreply at freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=205368

            Bug ID: 205368
           Summary: fails to shut down IPv6 loopback interfaces
           Product: Base System
           Version: 10.2-RELEASE
          Hardware: amd64
                OS: Any
            Status: New
          Severity: Affects Many People
          Priority: ---
         Component: kern
          Assignee: freebsd-bugs at FreeBSD.org
          Reporter: cwf-ml at gmx.net

FreeBSD 10.1 and 10.2 will not shut down IPv6 loopback interfaces properly. 
Loopback Interfaces continue to function for IPv6 even when set "down", while
IPv4 on the very same interface behaves correctly:

nxnew# [~] uname -a
FreeBSD nxnew.whatever 10.2-RELEASE FreeBSD 10.2-RELEASE #0 r286666: Wed Aug 12
15:26:37 UTC 2015     root at releng1.nyi.freebsd.org:/usr/obj/usr/src/sys/GENERIC
 amd64
nxnew# [~] ifconfig lo1 create
nxnew# [~] ifconfig lo1 192.168.255.255/32
nxnew# [~] ifconfig lo1 inet6 fe80::1
nxnew# [~] ifconfig lo1 inet6 2001:db8:c01:ff::1/128

nxnew# [~] ping6  2001:db8:c01:ff::1
PING6(56=40+8+8 bytes) 2001:db8:c01:ff::1 --> 2001:db8:c01:ff::1
16 bytes from 2001:db8:c01:ff::1, icmp_seq=0 hlim=64 time=0.107 ms
16 bytes from 2001:db8:c01:ff::1, icmp_seq=1 hlim=64 time=0.058 ms
^C
--- 2001:db8:c01:ff::1 ping6 statistics ---
2 packets transmitted, 2 packets received, 0.0% packet loss
round-trip min/avg/max/std-dev = 0.058/0.083/0.107/0.024 ms

nxnew# [~] ifconfig lo1 down

nxnew# [~]  ping6 -c 2  2001:db8:c01:ff::1
PING6(56=40+8+8 bytes) 2001:db8:c01:ff::1 --> 2001:db8:c01:ff::1
16 bytes from 2001:db8:c01:ff::1, icmp_seq=0 hlim=64 time=0.091 ms
16 bytes from 2001:db8:c01:ff::1, icmp_seq=1 hlim=64 time=0.053 ms

--- 2001:db8:c01:ff::1 ping6 statistics ---
2 packets transmitted, 2 packets received, 0.0% packet loss
round-trip min/avg/max/std-dev = 0.053/0.072/0.091/0.019 ms

nxnew# [~] ping -c 2 192.168.255.255
PING 192.168.255.255 (192.168.255.255): 56 data bytes

--- 192.168.255.255 ping statistics ---
2 packets transmitted, 0 packets received, 100.0% packet loss

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