I just got internet setup in my dorm room at school through a third-party provider. The modem they gave me, however, also functions as a wireless router. I also have my own router with DD-WRT on it, which I would much prefer to use over their... not so good built-in router.
- router-modem: The router-modem combination given to me by my internet provider
- router: My personal router
Simple. I just connected the WAN port on my router to the first port on the switch of their router-modem combo thing. Then, I disabled the WiFi on the router-modem, and disabled the firewall completely (effectively making the entire thing a DMZ, as DD-WRT has a built-in SPI firewall).
Just to note this, the IP address on my router is set statically, and DHCP has been disabled on their router-modem. There are no other physical connections to the router-modem other than my router.
- Are there any disadvantages to what I'm doing?
- Am I somehow circumventing any of the protection features of the SPI firewall by doing this?
- Will it result in any excess lag when trying to play online games? (due to the additional hop each packet needs to traverse)