[ds6] New to IPv6...

Kirk Bollinger kirk at 128bits.org
Tue Nov 4 07:37:32 CET 2003


On Mon, 3 Nov 2003, Kevin O'Mara wrote:

> Simone Piunno wrote:
> 
> >Alle 06:18, lunedì 3 novembre 2003, Kevin O'Mara ha scritto:
> >
> >  
> >
> >>I am interesting in jumping on the ipv6 bandwagon.  However, before I
> >>configure my Linux masquerading server to use ipv6, I want to know if it
> >>is possible to use ipv6 over the ipv4 connection provided by my Internet
> >>cable provider, Comcast.
> >>    
> >>
> >
> >I don't know your provider, but this is a short checklist:
> >
> > - do they NAT you? do you have a public globally valid IP address on your
> >   server?
> > - do they firewall you? are you able to send and receive raw IP packets (e.g.
> >   non UDP/TCP/ICMP) ?
> >
> >  
> >
> So you are telling me that if...
> 
> 1.) I Do have a public, valid IP address on my server, and..
> 2.) That they do firewall TCP/Port 80, but not other ports
> 
> That I can use IPv6 on my cable Internet connection?  What about a IPv6 
> DNS server?  Comcast does not offer this.


V6 dns is resolved currently via v4 ->

This is on a v4 only PC at the moment.
[kirk at tux net]$ ./getadd -4 www.kame.net

www.kame.net -> 203.178.141.194
[kirk at tux net]$ ./getadd -6 www.kame.net

www.kame.net -> 2001:200:0:8002:203:47ff:fea5:3085

I'm not sure about windows but in linux you can configure the order for
dns resolution ie v4 or v6 first in nsswitch.conf ie->

hosts:          files dns6

I believe this will try v6 first and then v4 resolution.

-kirk



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