[bitfolk] Network not coming up

Following an upgrade to Ubuntu 18.04, my network is not coming up properly. The interface seems to come up, but traffic is not being routed properly. Andy checked and he can ping my VPS some within Bitfolk, but from the machine I cannot see the outside world, nor can I see the machine from the outside world. /etc/network/interfaces is as below. Does anybody have any ideas as to what is wrong? #### BEGIN auto lo iface lo inet loopback auto eth0 iface eth0 inet static address 85.119.83.128 netmask 255.255.248.0 gateway 85.119.80.1 auto eth0:1 iface eth0:1 inet static address 212.13.195.128 netmask 255.255.255.255 iface eth0 inet6 static auto lo iface lo inet loopback auto eth0 iface eth0 inet static address 85.119.83.128 netmask 255.255.248.0 gateway 85.119.80.1 auto eth0:1 iface eth0:1 inet static address 212.13.195.128 netmask 255.255.255.255 address 2001:ba8:1f1:f1e5::2 netmask 64 gateway fe80::fcff:ffff:feff:ffff pre-up echo "/sbin/modprobe ipv6" && /sbin/modprobe ipv6 || true post-up echo "/proc/sys/net/ipv6/conf/default/forwarding=0" && echo 0 > /proc/sys/net/ipv6/conf/default/forwarding || true post-up echo "/proc/sys/net/ipv6/conf/all/forwarding=0" && echo 0 > /proc/sys/net/ipv6/conf/all/forwarding || true post-up echo "/proc/sys/net/ipv6/conf/default/accept_ra=0" && echo 0 > /proc/sys/net/ipv6/conf/default/accept_ra || true post-up echo "/proc/sys/net/ipv6/conf/all/accept_ra=0" && echo 0 > /proc/sys/net/ipv6/conf/all/accept_ra || true post-up echo "/proc/sys/net/ipv6/conf/$IFACE/accept_ra=0" && echo 0 > /proc/sys/net/ipv6/conf/$IFACE/accept_ra || true post-up echo "/proc/sys/net/ipv6/conf/default/autoconf=0" && echo 0 > /proc/sys/net/ipv6/conf/default/autoconf || true post-up echo "/proc/sys/net/ipv6/conf/all/autoconf=0" && echo 0 > /proc/sys/net/ipv6/conf/all/autoconf || true post-up echo "/proc/sys/net/ipv6/conf/$IFACE/autoconf=0" && echo 0 > /proc/sys/net/ipv6/conf/$IFACE/autoconf || true #### END