make ubuntu pppoe client and server support ipv6

IPv6 over ppp is support by PPP by default. 

Just modify config file will make ipv6 work.

 

Server's configure:

add one line to pppoe config file(/etc/ppp/pppoe-server-options)

"ipv6 ::111,::2"

after modify, restart pppoe-server.

Dial again, ppp interface can get an ipv6 link local address from server.

ppp101    Link encap:Point-to-Point Protocol  

          inet addr:192.172.200.60  P-t-P:192.172.200.140  Mask:255.255.255.255

          inet6 addr: fe80::2/10 Scope:Link

          UP POINTOPOINT RUNNING NOARP MULTICAST  MTU:1492  Metric:1

          RX packets:912 errors:0 dropped:0 overruns:0 frame:0

          TX packets:597 errors:0 dropped:0 overruns:0 carrier:0

          collisions:0 txqueuelen:25 

          RX bytes:99356 (97.0 KiB)  TX bytes:44761 (43.7 KiB)

Client's configure:

Add one line to pppoe's config file(/etc/ppp/options:

"+ipv6"