>> my suggestion is to leave it SHOULD. >you didnt justify why. makes no sense on an unprotected network.
i did. you did not quote my previous line. >> agree completely. if you allow enemy to be on-link you are dead. >> my suggestion is to leave it SHOULD. this is just like physical security; if you allow people to enter computer room, security mechanisms are pertty moot as bad guys can use sledge hammer to break the computer. itojun -------------------------------------------------------------------- IETF IPv6 working group mailing list [EMAIL PROTECTED] Administrative Requests: https://www1.ietf.org/mailman/listinfo/ipv6 --------------------------------------------------------------------