Public bug reported:
I cannot figure out what the problem is, but ping6 doesn't understand
IPv6 addresses, except for the "local" IPs.
$ ifconfig eth0
eth0 Link encap:Ethernet HWaddr 70:5a:b6:<blah>
inet addr:192.168.0.25 Bcast:192.168.0.63 Mask:255.255.255.192
inet6 addr: fe80::725a:b6ff:fef3:4d60/64 Scope:Link
$ ping6 ::1 -c 1
PING ::1(::1) 56 data bytes
64 bytes from ::1: icmp_seq=1 ttl=64 time=0.074 ms
$ ping6 fe80::725a:b6ff:fef3:4d60
connect: Invalid argument
strace:
connect(3, {sa_family=AF_INET6, sin6_port=htons(1025), inet_pton(AF_INET6,
"fe80::725a:b6ff:fef3:4d60", &sin6_addr), sin6_flowinfo=0, sin6_scope_id=0},
28) = -1 EINVAL (Invalid argument)
dup(2) = 4
fcntl(4, F_GETFL) = 0x8002 (flags O_RDWR|O_LARGEFILE)
fstat(4, {st_mode=S_IFCHR|0600, st_rdev=makedev(136, 12), ...}) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) =
0x7ff83d761000
lseek(4, 0, SEEK_CUR) = -1 ESPIPE (Illegal seek)
write(4, "connect: Invalid argument\n", 26connect: Invalid argument
) = 26
close(4)
I haven't been able to ping any IPv6 addresses for about a year.
Tried on a fresh server install:
$ ping6 -c 1 fe80::21d:9ff:feb6:1231
connect: Invalid argument
$ route -n46
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
0.0.0.0 192.168.0.2 0.0.0.0 UG 100 0 0 eth0
10.0.3.0 0.0.0.0 255.255.255.0 U 0 0 0 lxcbr0
169.254.0.0 0.0.0.0 255.255.0.0 U 1000 0 0 eth0
192.168.0.0 0.0.0.0 255.255.255.192 U 0 0 0 eth0
192.168.0.0 0.0.0.0 255.255.255.192 U 0 0 0 eth1
Kernel IPv6 routing table
Destination Next Hop Flag Met Ref Use If
2001::/32 :: U 256 0 0
teredo
fe80::/64 :: U 256 0 0 eth1
fe80::/64 :: U 256 0 0 eth0
fe80::/64 :: U 256 0 0
lxcbr0
fe80::/64 :: U 256 0 0
teredo
::/0 :: U 1029 0 0
teredo
::/0 :: !n -1 1 1206 lo
::1/128 :: Un 0 1 33 lo
2001:0:53aa:64c:2044:3165:a13e:bbf8/128 :: Un 0 1
0 lo
fe80::ffff:ffff:ffff/128 :: Un 0 1 0 lo
fe80::725a:b6ff:fef3:4d60/128 :: Un 0 1 0 lo
fe80::7ae4:ff:fe14:9eb5/128 :: Un 0 1 0 lo
fe80::f48c:52ff:fea5:50c2/128 :: Un 0 1 0 lo
ff00::/8 :: U 256 0 0 eth1
ff00::/8 :: U 256 0 0 eth0
ff00::/8 :: U 256 0 0
lxcbr0
ff00::/8 :: U 256 0 0
teredo
::/0 :: !n -1 1 1206 lo
Although, this doesn't appear to be a routing issue.
ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: iputils-ping 3:20101006-1ubuntu1
ProcVersionSignature: Ubuntu 3.2.0-32.51-generic 3.2.30
Uname: Linux 3.2.0-32-generic x86_64
NonfreeKernelModules: fglrx wl
ApportVersion: 2.0.1-0ubuntu14
Architecture: amd64
Date: Tue Nov 6 06:11:13 2012
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427.1)
ProcEnviron:
LANGUAGE=en_GB:en
TERM=xterm
PATH=(custom, no user)
LANG=en_GB.UTF-8
SHELL=/bin/bash
SourcePackage: iputils
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: iputils (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug ping precise
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https://bugs.launchpad.net/bugs/1075424
Title:
ping6 does not understand IPv6 addresses
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