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My Problem
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.
Terminology
- router-modem: The router-modem combination given to me by my internet provider
- router: My personal router
My Solution
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.
My Questions
- 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)
it will be slow and possible of security breech – joe – 2009-09-10T18:51:43.983
7I'm doing exactly the same thing - my Verizon FIOS modem/router can't be replaced, so I simply plug my Linksys router inside of it, and run everything off that. Same exact setup. – The How-To Geek – 2009-09-11T01:49:31.763
1@The How-To Geek: I'm assuming it all works fine for you - no lag or anything? (Sidenote: I hate how ISP's assume that we want a router bundled with our modem...) – Breakthrough – 2009-09-11T02:00:29.483
1Yes, it works perfectly for me. – The How-To Geek – 2009-09-11T04:13:04.450
13Re: joe's comment. This is why downvoting comments would be advantageous. – Travis Northcutt – 2009-09-13T03:02:18.833
1tnorthcutt... Agreed. – Breakthrough – 2009-09-13T03:44:15.877
@tnorthcutt upvoting other comments gets them off the main page though :) – Cruncher – 2013-11-26T14:49:37.030