config android network by manual

fp5 # pppd /dev/ttyGS0 115200 192.168.11.1:192.168.11.10 ms-dns 8.8.8.8 nodetach debug local persist silent noproarp

fp5 # ndc network create 11 # 

fp5 # ndc network interface add 11 ipv6

fp5 # ndc network route add 11 ipv6 192.168.7.10/32

fp5 # ndc network default set 11

fp5 # ndc network route remove 11 ipv6 192.168.7.10/32

fp5 # ndc network route add 11 ipv6 ::/0 fe80::5efe:11.11.11.11