I've got a Ubuntu Linux box that has two IPv4 addresses and an IPv6 address. This is my current
auto lo iface lo inet loopback auto eth0 eth0:0 iface eth0 inet static address 22.214.171.1242 netmask 255.255.255.0 gateway 126.96.36.199 iface eth0:0 inet static address 192.168.171.512 netmask 255.255.128.0
I want to add the IPv6 address (2600:3c03::c0a8/128, a few octets removed) to
eth0 so that it's autoconfigured. However, adding a sub-interface
eth0:1 and entering
iface eth0:1 inet6 autoconf didn't work:
/etc/network/interfaces:15: unknown method ifdown: couldn't read interfaces file "/etc/network/interfaces"
Is there a way that I can auto-configure IPv6 and statically configure IPv4 on the same interface?
*The .512 is just for obfuscation; the IPv4 IPs are fine.