David Conrad wrote:
On Jul 2, 2005, at 6:47 PM, Todd Vierling wrote:
Good luck finding an implementation. The v6 designers have recommended against it due to the sheer *stupidity* of the concept, and as a result, I know of no extant implementations of NAT on v6 out there.
This is no market. Stunningly enough, IPv4 didn't have NAT back in the early 80's either. I'm guessing that as soon as someone trying to get real work done discovers that they have to renumber their network and all the places where IPv6 addresses have become embedded when they change providers that a market for NATv6 will magically appear.
The good thing with IPv6 is autoconfiguration. There is no need to renumber. With the radvd daemon running your box builds its own ip as soon as you plug it in. Configure your radvd to assign only local addresses is like having DHCP assign only 192.168.xxx.xxx Your box will not pass a router to the outside. Nobody will see your box from the outside. If your box is allowed then give it a global address from the radvd. Your box does not care about the changed address. It will happyly use it.
The whole point of 128 bits of space is to allow, essentially, embedding of routing metadata into the address with *still* enough address bits left over for any possible size of subnetwork.
The whole point of 128 bits was that it wasn't NSAPs.
Rgds, -drc
I have given up writing a new peace of software every now and then to fix a new protocol broken on my NAT-router. Things broken because of NAT-routers do run happyly via tunnels to IPv6 tunnel brokers. You can run 64K servers behind that single ip your NAT-router has in use. Of course it does not make sense. But try to run two DNS-servers behind a single NAT using IPv4 addresses. You may as well try two ftp-servers or two whatever you like. Today we have software that is able to cross NAT-routers. That software is a security risk because it is breaking the NAT-router just as are viruses that break firewalls. Not having to care about NAT we would have lighter software that was able to take care of itself. Have a nice weekend Peter and Karin -- Peter and Karin Dambier Public-Root Graeffstrasse 14 D-64646 Heppenheim +49-6252-671788 (Telekom) +49-179-108-3978 (O2 Genion) +49-6252-750308 (VoIP: sipgate.de) +1-360-448-1275 (VoIP: freeworldialup.com) +1-360-226-6583-9563 (INAIC) mail: peter@peter-dambier.de http://iason.site.voila.fr http://www.kokoom.com/iason