I'm not familiar with the DIR-625, but it would have to work in a bridge mode for you to be able to do that. I'm using a Linksys ethernet bridge to do what you are doing. I'm sure that DLink probably makes a similar product. The model I have is the WET610N. It's a dual band device, so I have it setup to connect to my DIR-825 on the 5 Ghz band. The output of the WET610N ethernet bridge is connected to a 5 port switch. I have a desktop computer, an XBox360, a Dish Network satellite receiver, and a Network Attached Storage drive all connected to the switch. It works great!