Tools such as vpnc try to flush routes when run inside network
namespaces by writing 1 into /proc/sys/net/ipv4/route/flush. This
currently does not work because flush is not enabled in non-initial
network namespaces.
Since routes are per network namespace it is safe to enable
/proc/sys/net/ipv4/route/flush in there.
This has been reported against LXD a few times before
Tools such as vpnc try to flush routes when run inside network net/ipv4/ route/flush. This net/ipv4/ route/flush in there.
namespaces by writing 1 into /proc/sys/
currently does not work because flush is not enabled in non-initial
network namespaces.
Since routes are per network namespace it is safe to enable
/proc/sys/
This has been reported against LXD a few times before
Link: https:/ /github. com/lxc/ lxd/issues/ 4257
Please backport this to our LTS kernels. :)