|The IP's I used in the guide are for example only. Your exisiting router (homehub) already has an IP assiged to it's LAN side. It might be 192.168.0.1, or it might be 192.168.1.1.|
Best to check and see what TCP/IP settings your "homehub" has assigned to it now. Open a command prompt window (ie: Start >> Run >> type cmd and hit Enter) and then perform the following command:
The "Default Gateway" setting should be the LAN IP of your router. To verify, open a web browser and connect to that IP and you should be accessing the management interface for said router. You'll want to check in there and find the DHCP scope of the router so you can choose an IP for your second router that isn't within the scope (avoids the chance of a duplicate IP being given out by DHCP to a client).
Once you know the LAN IP and Subnet Mask of the original router, you can then configure the downstream router.
You will connect from LAN port to LAN port I'm not familiar with the devices you're using but I suspect the "DSL" port you mention is likely the WAN port and not the LAN port. I would suspect your other router has 4 LAN ports and they're marked as LAN ports.
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.