Yes it can. I am using one as a wireless access point with a Motorola cable modem/router that is 802.11b, which also had firewall issues with my work's VPN that I was unable to remedy. Perform the following:
- Reserve a TCP/IP address in the "other" router's DHCP table to be assigned to the DIR-655 on the same network. In my case this was done in the Motorola's router.
Perform the following on the DIR-655 to be used as the wireless access point.
In network settings:
- Assign the TCP/IP address reserved above to the DIR-655.
- Turn off DNS relay
- Turn off DHCP server
- Plug a Cat 5 network cable from one of the "other" router's switch ports into one of the DIR 655's switch ports instead of the Internet port. This will be your wired connection between the access point (now the DIR-655) and the "other" router.
You are now done and may want to review firewall settings per your now different setup. For me, in order to get my work's VPN access to function correctly, I had to turnoff the firewall on the Motorola and use the firewall on the DIR-655, which was more flexible. I also have the same issue on an ActionTec DSL modem/router and use the firewall in the DIR-655 on it as well.