In container prior to address expiration:
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
10: eth0@if11: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
link/ether 00:16:3e:14:0b:a4 brd ff:ff:ff:ff:ff:ff link-netnsid 0
inet6 xxxx:xxxx:8c:1:216:3eff:fe14:ba4/64 scope global dynamic mngtmpaddr noprefixroute
valid_lft 3591sec preferred_lft 3591sec
inet6 fe80::216:3eff:fe14:ba4/64 scope link
valid_lft forever preferred_lft forever
xxxx:xxxx:8c:1::/64 dev eth0 proto ra metric 100 expires 3531sec pref medium
fe80::/64 dev eth0 proto kernel metric 256 pref medium
default via fe80::216:3eff:fe7f:94da dev eth0 proto ra metric 100 expires 1731sec mtu 1500 pref medium
Host:
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: ens18: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
link/ether 56:8d:b1:6b:09:ed brd ff:ff:ff:ff:ff:ff
inet xxx.xxx.xxx.xxx/29 brd xxx.xxx.xxx.xxx scope global ens18
valid_lft forever preferred_lft forever
inet6 fe80::548d:b1ff:fe6b:9ed/64 scope link
valid_lft forever preferred_lft forever
3: ens19: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
link/ether 66:b7:70:f4:80:be brd ff:ff:ff:ff:ff:ff
inet 10.0.0.100/24 brd 10.0.0.255 scope global ens19
valid_lft forever preferred_lft forever
inet6 xxxx:xxxx:8c::/44 scope global
valid_lft forever preferred_lft forever
inet6 fe80::64b7:70ff:fef4:80be/64 scope link
valid_lft forever preferred_lft forever
4: lxdbr0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
link/ether 00:16:3e:25:1e:31 brd ff:ff:ff:ff:ff:ff
inet 10.0.1.1/24 scope global lxdbr0
valid_lft forever preferred_lft forever
inet6 xxxx:xxxx:8c:1::1/64 scope global
valid_lft forever preferred_lft forever
inet6 fe80::216:3eff:fe25:1e31/64 scope link
valid_lft forever preferred_lft forever
::1 dev lo proto kernel metric 256 pref medium
xxxx:xxxx:8c:1::/64 dev lxdbr0 proto kernel metric 256 linkdown pref medium
xxxx:xxxx:80::/44 dev ens19 proto kernel metric 256 pref medium
fe80::/64 dev ens19 proto kernel metric 256 pref medium
fe80::/64 dev ens18 proto kernel metric 256 pref medium
fe80::/64 dev lxdbr0 proto kernel metric 256 linkdown pref medium
default via xxxx:xxxx:8f:: dev ens19 proto static metric 1024 pref medium
(i switched the ipv6 block to a /64 to see if it would help, however this had no effect)