You can use the Travel Router's Access Point mode when you want to connect one or more computers to an Ethernet LAN, or local-area network, equipped with its own DHCP server.

Wireless Router creates a network so that devices can connect to it. Wireless Access Point creates an access point that other devices can use to connect.

The Asus router should have an access point mode. Forget where it is. One of the tabs under Admin or LAN I think. That does it all for you. I've set up a couple of Asus routers that way and it ...

Then after it was up and running I went to change mode to Access Point instead of router so I don't have two devices trying to hand out IP addresses.