RE: Newbie Question about addressing impacts
"Bound, Jim" <[email protected]>
| Newsgroups | gmane.ietf.multi6 |
|---|---|
| Message-ID | <9C422444DE99BC46B3AD3C6EAFC9711B07045240@tayexc13.americas.cpqcorp.net> |
And I think it wise to table the complete solution space to define and get something working now. /jim > -----Original Message----- > From: [email protected] > [mailto:[email protected]] On Behalf Of Tony Li > Sent: Friday, August 13, 2004 5:29 AM > To: Brian E Carpenter > Cc: Multi6 > Subject: Re: Newbie Question about addressing impacts > > > I repeat my comment from when I first saw Mike O'Dell's original 8+8 > > proposal: "It's architected NAT." I think anything that massages > > locators, whether it's in the host stack or in a proxy, > comes down to > > architected NAT. Which means there is going to be state, so > that the > > massage can be reversed, so that the ULP always sees the same e2e > > identifier. It's a design choice whether that state is in hosts, > > proxies, or both. > > > > Actually, we're kidding ourselves if we don't admit that > this is what > > we are going to end up doing. > > > > > I think that it is vitally important that we all understand > this and how we got here. If we want a host to respond > flexibly to multiple addresses, then either (a) the protocol > stack needs to know about the various addresses and can swap > between them on the fly, OR > (b) something NATty outside of the protocol stack has to > "fool" the protocol stack into responding consistently. > > Years ago, we rejected (a) on the grounds that it would change IPv6. > Folks who want to reject (b) now need to understand that they > will be rejecting the entire solution space... > > Tony > > >