Public bug reported:
Running on Ubuntu 22.04.3 LTS jammy
lxc-utils:
Installed: 1:5.0.0~git2209-g5a7b9ce67-0ubuntu1.1
When configuring IPV6 on the default lxcbr0 LXC bridge in /etc/default/lxc-net,
using the following:
LXC_IPV6_ADDR="fec0:1:1:1::2"
LXC_IPV6_MASK="64"
LXC_IPV6_NETWORK="fec0:1:1:1::/64"
LXC_IPV6_NAT="true"
The lxc-net service fails to start: systemctl restart lxc-net
Starting LXC network bridge setup...
Error: conflicting protocols specified: ip6 vs. ip
^^^^^^^^
Failed to setup lxc-net.
lxc-net.service: Main process exited, code=exited, status=1/FAILURE
lxc-net.service: Failed with result 'exit-code'.
Failed to start LXC network bridge setup.
Turns out this is due to a syntax error in
/usr/lib/x86_64-linux-gnu/lxc/lxc-net on line 174:
add rule ip6 lxc postrouting ip saddr ${LXC_IPV6_NETWORK} ip daddr !=
${LXC_IPV6_NETWORK} counter masquerade;
Should mention "ip6 saddr" and "ip6 daddr" in the line, like so:
add rule ip6 lxc postrouting ip6 saddr ${LXC_IPV6_NETWORK} ip6 daddr !=
${LXC_IPV6_NETWORK} counter masquerade;
After manually editing the /usr/lib/x86_64-linux-gnu/lxc/lxc-net file to
include the correct ip6 syntax, lxc-net starts up fine and IPV6
networking works on my LXC containers.
This fix seems to already live in the upstream lxc project on github:
https://github.com/lxc/lxc/commit/4de047f51365cc06a626ee9de49fec5f76556c66#diff-f16b43004d25f547f78c7457ba74cb05eaaa2bcf979dac8173314916ef36e7f4
and as far as I can tell made it into lxc-utils 5.0.3.
Unfortunately Ubuntu jammy ships with lxc-utils 5.0.0
** Affects: lxc (Ubuntu)
Importance: Undecided
Status: New
** Tags: jammy
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https://bugs.launchpad.net/bugs/2053011
Title:
lxc-net fails to start when configuring IPV6
Status in lxc package in Ubuntu:
New
Bug description:
Running on Ubuntu 22.04.3 LTS jammy
lxc-utils:
Installed: 1:5.0.0~git2209-g5a7b9ce67-0ubuntu1.1
When configuring IPV6 on the default lxcbr0 LXC bridge in
/etc/default/lxc-net, using the following:
LXC_IPV6_ADDR="fec0:1:1:1::2"
LXC_IPV6_MASK="64"
LXC_IPV6_NETWORK="fec0:1:1:1::/64"
LXC_IPV6_NAT="true"
The lxc-net service fails to start: systemctl restart lxc-net
Starting LXC network bridge setup...
Error: conflicting protocols specified: ip6 vs. ip
^^^^^^^^
Failed to setup lxc-net.
lxc-net.service: Main process exited, code=exited, status=1/FAILURE
lxc-net.service: Failed with result 'exit-code'.
Failed to start LXC network bridge setup.
Turns out this is due to a syntax error in
/usr/lib/x86_64-linux-gnu/lxc/lxc-net on line 174:
add rule ip6 lxc postrouting ip saddr ${LXC_IPV6_NETWORK} ip daddr !=
${LXC_IPV6_NETWORK} counter masquerade;
Should mention "ip6 saddr" and "ip6 daddr" in the line, like so:
add rule ip6 lxc postrouting ip6 saddr ${LXC_IPV6_NETWORK} ip6 daddr !=
${LXC_IPV6_NETWORK} counter masquerade;
After manually editing the /usr/lib/x86_64-linux-gnu/lxc/lxc-net file
to include the correct ip6 syntax, lxc-net starts up fine and IPV6
networking works on my LXC containers.
This fix seems to already live in the upstream lxc project on github:
https://github.com/lxc/lxc/commit/4de047f51365cc06a626ee9de49fec5f76556c66#diff-f16b43004d25f547f78c7457ba74cb05eaaa2bcf979dac8173314916ef36e7f4
and as far as I can tell made it into lxc-utils 5.0.3.
Unfortunately Ubuntu jammy ships with lxc-utils 5.0.0
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/lxc/+bug/2053011/+subscriptions
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