Package: iputils-ping
Version: 3:20101006-1+b1
Severity: normal
Tags: ipv6
Dear Maintainer,
I only have link local IPv6 addresses on my network and have been trying
to communicate between computers using IPv6 addresses.
ifconfig shows the following for wlan0
wlan0 Link encap:Ethernet HWaddr 00:18:4d:b1:f4:98
inet addr:192.168.1.67 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::218:4dff:feb1:f498/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:2707 errors:0 dropped:0 overruns:0 frame:0
TX packets:1356 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:1228869 (1.1 MiB) TX bytes:156171 (152.5 KiB)
ping6 fe80::218:4dff:feb1:f498 fails with the message
connect: Invalid argument
This is expected as the manual page states
-I interface address
Set source address to specified interface address. Argument may
be numeric IP address or name of device. When pinging IPv6 link-
local address this option is required.
When I use -I with the device name wlan0 the ping succeeds
ping6 -I wlan0 fe80::218:4dff:feb1:f498
PING fe80::218:4dff:feb1:f498(fe80::218:4dff:feb1:f498) from
fe80::218:4dff:feb1:f498 wlan0: 56 data bytes
64 bytes from fe80::218:4dff:feb1:f498: icmp_seq=1 ttl=64 time=0.218 ms
64 bytes from fe80::218:4dff:feb1:f498: icmp_seq=2 ttl=64 time=0.199 ms
^C
--- fe80::218:4dff:feb1:f498 ping statistics ---
2 packets transmitted, 2 received, 0% packet loss, time 999ms
rtt min/avg/max/mdev = 0.199/0.208/0.218/0.017 ms
When I use -I with the numeric IP address it is supposed to succeed but fails
ping6 -I fe80::218:4dff:feb1:f498 fe80::218:4dff:feb1:f498
ping: bind icmp socket: Invalid argument
I get the same results when I ping to fe80::2c0:4fff:fe9c:8daf (the IPv6
of my other computer) i.e. no -I fails, -I wlan0 succeeds, -I numeric fails.
p.s. The command ssh -b fe80::218:4dff:feb1:f498 fe80::2c0:4fff:fe9c:8daf
also fails when binding the numeric IP address
bind: fe80::218:4dff:feb1:f498: Invalid argument
-- System Information:
Debian Release: wheezy/sid
APT prefers testing
APT policy: (500, 'testing')
Architecture: i386 (i686)
Kernel: Linux 3.1.0-1-686-pae (SMP w/1 CPU core)
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Versions of packages iputils-ping depends on:
ii libc6 2.13-23
ii libssl1.0.0 1.0.0e-3
iputils-ping recommends no packages.
iputils-ping suggests no packages.
-- no debconf information
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