[6bone] Cisco and NAT question

Tim Chown tjc at ecs.soton.ac.uk
Mon Feb 21 15:22:59 PST 2005


Hi Scott,

Why use IPv6 at all if you are using NAT, why not just use IPv4?

I think it's good if Cisco don't support IPv6 NAT operations ;)

Tim

On Mon, Feb 21, 2005 at 01:44:22PM -0500, Scott Nelson wrote:
> Can NAT be setup to NAT ipv6 to ipv6 from one interface to the other?
> 
> ISP1   ISP2   ISP3
>   |      |             |
>         router
>     |        |
> Client/Network connections
> 
> 
> I want to statically route all of ISP 2  and ISP 3 network ranges to them
> via their connections while using ISP's 1 network range for everything else.
> ISP1, 2 and 3 are tunnels. Client/Network connections are and fast ethernet
> and a 10Mb ethernet.
> 
> BGP would be great except that I can't get anyone to call me back so, I am
> exploring this option while I am waiting for them to call ( if ever ).
> Free tunnels are great but..............   ;-)
> 
> Anyway, I have been working on it for a couple of days now and can't seem to
> get this working.
> So, what I need is to NAT overload ISP2 and ISP3 from my network ranges.
> That's the part that I am having an issue with.
> Routing is already pushing the traffic for those networks out the correct
> tunnels via static route to each tunnel.
> 
> Anybody doing IPv6 NAT overload via Cisco or have an idea how to get this
> working?
> 
> TIA
> 
> Scotty
> 
> 
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-- 
Tim




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