Hi Ali,

Without seeing your config it is difficult to say what might the problem be, but I have one guess:

In the frame-relay map statements you should configure the link-local addresses of the neighbor routers, not the normal ipv6 addresses, like this:

frame-relay map ipv6 FE80::1 103 broadcast

You can find the autoconfigured link-local address of the serial interface of the neighbor router by using the "show ipv6 interface brief" command on the neighbor router.

You should apply this link-local address in the frame-relay mapping on the local router.

If this doesn't solve your issue, then please post your config.

Cheers:

Istvan