OpenWRT IPv6

To avoid router advertisements of HENET route (use telekom route) set prefix to >96. From odhcpd router.c [1]

if (addr->prefix > 96)
    continue; // Address not suitable

Unfortunately br-lan ignores the prefix in this case. Set ip manually:

ifconfig br-lan 2001:470:1f0b:bc0::1/100 add