|The only way you could hope to do this is to enable ICS (Internet Connection Sharing) on the the dialup adapter and I'm not sure offhand if that's possible. If it is, and once that's done, the network interface on your laptop will need to be plugged in to a LAN port (not the WAN port) of your router.|
If I remember correctly, ICS assigns the following TCP/IP settings to the NIC:
Subnet Mask: 255.255.255.0
You would need to assign something like the following to the LAN side of the router:
Default Gateway: 192.168.0.1
Create a DHCP scope in the same subnet, something like 192.168.0.100 to 192.168.0.199 with the same DG, DNS and SM settings
Make sure any clients you wish to connect are set to get their TCP/IP settings automatically (DHCP) and then plug them into a LAN port as well.
But, as I said up front, this all depends on whether or not you can enable ICS on the dialup adapter.
It matters not how straight the gate,
How charged with punishments the scroll,
I am the master of my fate;
I am the captain of my soul.