As far as I know a LAN with a DHCP router AND NAT port forwarding does never work.

For NAT port forwarding rules the router need to know to which target computer (=target IP)
he should forwarding incoming requests. Because of DHCP the target computer can be assigned
a dynamic, from time to time changing IP. Hence there is no fixed IP for the NAT rule
which can be entered.

On the other hand a computer name like "comp123" cannot be antered in the NAT forwarding scheme
because only IPs are allowed.

Finally DHCP and NAT port forwarding exclude each other.

Am I right or is there a workaroud ?

Wolfgang

Check this registry setting to see if computers are enabled for forwarding

IPEnableRouter
Key: Tcpip\Parameters
Value Type: REG_DWORD - Boolean
Valid Range: 0 or 1 (False or True)
Default: 0 (False)
Description: Setting this parameter to 1 (True) causes the computer to route
IP packets between the networks that it is connected to.

or if this doesnt help then take a look at this article.

http://www.microsoft.com/technet/prodtechnol/winxppro/deploy/nattrnsv.mspx