Hi Alper, I know it's a risk, especially in Mobile-ip6 case, but the implementation which we're using (mipl) doesn't de-configure existing addresses when it receives an advertisement from a new prefix. The address is not fully deprecated until the advertisement lifetime expires.
I'm illustrating what we see if there's no DAD delay, not necessarily what should be done. If we have to do full 2461 DAD in every handover case, even recently visited networks, there's no way VoIP or real time video services will ever be deployed in mobile-ip6 environments, using the current specifications. RS/RA reply is vital in any case, since until the RA is sent out, you don't even know if you're on a different network, where DAD would need to be performed. There's no use doing DAD just because your link layer sends you a message saying your link has just come up. Greg Alper E. YEGIN wrote: > Greg, > > >>I'd just like to indicate that we have seen the delay >>for router advertisement to be a significant delay >>in MIPv6 handovers, since there is no DAD in the case >>where a mobile node moves back to a previously visited >>network. > > > How is that so? Of course the chances of some other > node claiming your node's IP address while it's gone > are even less, but still it is not impossible. So, you can > choose to not use DAD by taking this risk... Is this what > you mean? > > alper > -------------------------------------------------------------------- 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] --------------------------------------------------------------------
