Networking :: NAT inside network with PROXY

Hello,

I'm using MS VirtualPC and I've installed DSL 1.5 onto HD using this VirtualPC.

Computer is in intranet [IP 192.168.45.90/24], behind Proxy [192.168.45.100/24].

I've tried to use NAT in VirtualPC for that one NIC. And it's not runnig. Response is "DNS can't resolve..." IP in DSL [ifconfig] gave me 192.168.131.70/24. Is this IP bad for NAT? [because behind and afore it's begins with the same 192.168.x.x - but probably it doesn't matter, because of /24]

Where could be a problem?

Thank you very much

original here.