config interface wan
        option ifname   eth1
        option proto    static
        option ip6addr  2001:db80::2/64   # Own address
        option ip6gw    2001:db80::1      # Gateway address
        option ip6prefix 2001:db80:1::/48 # Prefix addresses for distribution to downstream interfaces
        option dns      2001:db80::1      # DNS server