From: "Hesham Soliman (EAB)" <[EMAIL PROTECTED]> > > => Technically, removing the must on the HAO is not a problem. > In fact, regardless of deployed base, keeping a must for > the HAO makes no sense IMHO. > As for the BE message, I guess we need to make sure that > somehow the CN tells the MN that no binding exists. > Not sure what can be done about this.
If the CN supports mip6, the CN will send a BE message when it receives a packet which has HAO and it doesn't have a BCE. If the CN doesn't support mip6, the CN will send an ICMP PRAMPROB with code 2 based on the ICMPv6 specification. When the MN receives a BE message, the MN will re-start RR procedure. When the MN receives ICMP PARAMPROB with code 2 and the pointer indicates HAO, the MN will switch to use bi-directional tunneling. Is there any other scenarios? Please correct me if the above rules are not enough to support non-mip6-aware IPv6 nodes. Best Regards, --- Keiichi SHIMA IIJ Research Laboratory <[EMAIL PROTECTED]> KAME Project <[EMAIL PROTECTED]> -------------------------------------------------------------------- IETF IPng Working Group Mailing List IPng Home Page: http://playground.sun.com/ipng FTP archive: ftp://playground.sun.com/pub/ipng Direct all administrative requests to [EMAIL PROTECTED] --------------------------------------------------------------------
