Computer based Router

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6 Replies - 769 Views - Last Post: 22 January 2011 - 09:26 AM

#1 Gorian   User is offline

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Computer based Router

Posted 21 January 2011 - 05:26 PM

So, not sure if this goes in "Computer Support & Operating Systems" or "Networking & Wireless", but I am sure it will get moved if needed :)

So, I am annoyed with my current router, which is from my ISP, and apparently, if I forward so many ports, it closes all of them :blink:

So, I was thinking of setting up a computer based router, connecting it my ISP router, and putting it in DMZ, and use that to forward the ports I need and whatnot.

First off, would this work?
Second, if so, what would you recommend (OS/Software Wise)? I have the dedicated computers available (sounds like something not to intensive, so most likely a single p3, 128MB RAM, 6.4 GB HDD (Yes, I have some of those) )

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#2 no2pencil   User is offline

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Re: Computer based Router

Posted 21 January 2011 - 09:06 PM

Yes, this would work. I believe you need to use two network interface cards, one will get the address from your ISP modem/router, & then the other will route traffic to a hub, or it's own internal subnet.
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#3 Gorian   User is offline

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Re: Computer based Router

Posted 21 January 2011 - 09:16 PM

Cool. I have enough NICS. I think I will use pfsense, unless anyone has other suggestions.
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#4 no2pencil   User is offline

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Re: Computer based Router

Posted 21 January 2011 - 09:19 PM

I saw a presentation on pfsense once, I was impressed, but I've never used it.
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#5 Gorian   User is offline

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Re: Computer based Router

Posted 21 January 2011 - 09:21 PM

Ah, well if you were impressed, then that is a good sign :P
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#6 Gorian   User is offline

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Re: Computer based Router

Posted 22 January 2011 - 06:08 AM

So, for anyone interested, or reading this thread, I used the solution queried in my original statement, and found it successful.

I downloaded an iso of pfsense, burned it to disk, and installed it to an old computer I had laying around, in this case, and HP Vectra, with 1 Pentium 3, 500MHz, and 348MBs of SDRAM

after installing it, and completing the initial setup, I turned off all services on my Modem/Router (all on unit) except for NAT, and changed the IP from 192.168.2.1 to 192.168.1.1, and then changed the LAN interface IP of the pfsense PC to 192.168.2.1 (thus leaving DHCP and static computers pointing to the right gateway) and changed the WAN interface IP to 192.168.1.2, and on the modem, put that IP in a DMZ zone (through the router, I could access the modem at 192.168.1.1, from a computer on the 192.168.2.0 subnet). This was successful in getting all the computers on my network routed successfully, though it took me a couple more hours to figure out the port forwarding, and firewall, and how to not block my internet access by doing it incorrectly.

This post has been edited by JackOfAllTrades: 22 January 2011 - 07:23 AM
Reason for edit:: Fixed link

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#7 cdpace   User is offline

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Re: Computer based Router

Posted 22 January 2011 - 09:26 AM

Pfsense is really cool, i use it at work atm. Apart from acting as a router it can aslo be used as a firewall,Intusion detection system,Content filtering and lots more stuff it's really cool.
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