If you are open to not using CentOS (which is wonderful), I would suggest something like pfsense. http://www.pfsense.com/
Based on M0n0wall and I think it will do what you are looking for. This would mean you would need a seperate set of hardware however. As for hardware, if you have an old machine around, it would probably work. We use WRAP boards from PC Engines and they do a great job. http://www.pcengines.ch/wrap.htm
The WRAP board is being discontinued, but the new versions will be out shortly. You can still get them at Wisp-Router (http://www.wisp-router.com/itemdesc.asp?ic=WRAP%2E1E23%2F1)
Hope that helps!
Andrew
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From: centos-bounces@centos.org [mailto:centos-bounces@centos.org] On Behalf Of Raymond M. Subasic Sent: Thursday, July 19, 2007 1:03 AM To: 'CentOS mailing list' Subject: [CentOS] Multiple WAN link -- CentOS Suitability -->
My situation:
I have a cable modem (COMCAST 6Mbit d/l) and am about to also have DSL (Verizon 3 Mbit d/l). I was thinking of using CentOS (4.4, 4.5, or 5??) as a router/dhcp server/firewall for my home network consisting of 3 to 6 computers at any given time. I seek the wisdom of the members of this list on the following issues:
-- Is CENTOS a good direction to go? I do not mind manually configuring things or installing lots of packages, and am doing this as both a learning experience for myself and proof of concept for a customer.
-- Is it possible/hard/easy/trivial to share the load between the two connections? Have either link fail and things still work correctly?
-- I plan to build a box for this job - looking for general recommendations of how much horsepower (mem/disk space, etc) is required
-- What are the implications of two pipes for incoming connections such as DynDNS based remote desktop or VNC, or web server, FTP, etc
The basic hardware layout I see is 3 nics, 1 GB RAM, 60 GB disk space. 1 NIC for each WAN port, 1 NIC for my local net, some recent CPU.
I have been browsing through the "Linux Advanced Routing & Traffic Control HOWTO," but am still not on top of how to get done what I'm looking for. I understand that there are probably products that I could buy to do this, but my preference is to do it myself.
Sorry if my questions are too basic. Please feel free to tell me off if so. Thanks.
rsubasic