EDIT: I've tried something different based on searching around. This is now my
# This file describes the network interfaces available on your system # and how to activate them. For more information, see interfaces(5). # The loopback network interface auto lo iface lo inet loopback # This line makes sure the interface will be brought up during boot auto eth0 allow-hotplug eth0 # The primary network interface iface eth0 inet static address 18.104.22.168 netmask 255.255.255.0 gateway 22.214.171.124 # dns-* options are implemented by the resolvconf package, if installed dns-nameservers 126.96.36.199 188.8.131.52 184.108.40.206 220.127.116.11 dns-search localdomain # up commands up ip addr add 18.104.22.168/24 dev eth0 up ip -6 addr add 2001:1af8:4100:a00e:4::1/64 dev eth0 up ip -6 ro add default via 2001:1af8:4100:a00e::1 dev eth0
ip addr show eth0 outputs:
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP qlen 1000 link/ether d4:ae:52:c5:d2:1b brd ff:ff:ff:ff:ff:ff inet 22.214.171.124/24 brd 126.96.36.199 scope global eth0 inet 188.8.131.52/24 scope global secondary eth0 inet6 2001:1af8:4100:a00e:d6ae:52ff:fec5:d21b/64 scope global dynamic valid_lft 2591870sec preferred_lft 604670sec inet6 2001:1af8:4100:a00e:4::1/64 scope global valid_lft forever preferred_lft forever inet6 fe80::d6ae:52ff:fec5:d21b/64 scope link valid_lft forever preferred_lft forever
ip -6 ro outputs:
2001:1af8:4100:a00e::/64 dev eth0 proto kernel metric 256 fe80::/64 dev eth0 proto kernel metric 256 default via 2001:1af8:4100:a00e::1 dev eth0 metric 1024 default via fe80::2d0:ff:fe9e:1800 dev eth0 proto kernel metric 1024 expires 1627sec default via fe80::2d0:2ff:fe33:3c00 dev eth0 proto kernel metric 1024 expires 1627sec
Eventually the two default proto kernel routes disappear from the output. My IPv6 connection still dropped at some point over night though. Again, simply running
sudo service networking stop && sudo service networking start got everything working again. Those two
fe80 routes reappeared as well, not surprising. Anyone any ideas?
aside: at no point has any IPv4 connectivity had issues.