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Building a load balance box

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Softgod

Disabled
Joined
Oct 11, 2002
Building a load balance box
OK, here is what I have going on. I have Comcast PRO service that is 4mb down and 384k up. Now that Comcast has upped everyone in my areas service to this speed I want to have two cable modems. It will actually save me like 4 dollars a month doing this anyhow and I will get more bandwith. Also, I am now working with a group of guys that are running a 350 person LAN and we have 5 cable modems for this event.

I need to make a load balance box for this. There are several available but this one comes to mind:

http://www.xincom.com

Now I want to have 5 pci 10/100 cards in a Pentium 3 500 system with 512 ram. This can be done on either Windows NT-2003 or on Linux. Just tell me how.
 

su root

Senior Member, --, I teach people how to read your
Joined
Aug 25, 2001
Location
Ontario, Canada
You would need a 6th network card, for the LAN ;)

A dual-wan router is the easy way to do it, but I would choose linux.
A place to start would be something like this:
http://www.inlab.de/balance.html

But I've never used it..

Also-- your ISP may not like you plugging 5 modems into one house.. you may take over a good chunk of the bandwidth for your neighborhood (if the other 4 modems aren't from your neighborhood)
 
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Softgod

Disabled
Joined
Oct 11, 2002
Actually, for the LAN they are going to provide them if I can figure out how to make the box. COmcast is on of our sponcers.
 

Fronic

Member
Joined
Nov 30, 2003
I actually have the Xincom DPG502 and I love it. Comcast hasn't upped the connection speed to 3 megs here unless you pay 100. I end up paying around 75 after discounts.

Anyway, about the box; good wealth of features, very good stealth firewall and load balancing works perfect. On newsgroups I regularly get 3.5 mbps downloads (works out to about 440kb/s).

I think I'm going to post a review in this forum since so many people have been wondering about it.
 

Fronic

Member
Joined
Nov 30, 2003
XWRed1 said:
Just round-robin interleaving of connections might break some things that establish multiple connections.

OpenBSD's PF can load balance nat like what you'd want:
http://www.openbsd.org/faq/pf/pools.html

That seems like it only does Round Robin. The Xincom does session based where you are able to download a file over 2 connections as long as you split it up.
 
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Softgod

Disabled
Joined
Oct 11, 2002
It is mainly for the 150 people that need to do that Steam thing for Counter Strike. But they will not all need that at the same time either.
 

XWRed1

Senior Member
Joined
Oct 31, 2001
Fronic said:


That seems like it only does Round Robin. The Xincom does session based where you are able to download a file over 2 connections as long as you split it up.

The round robin should end up doing what you want over time. I suppose in the short run, it might end up with two big connections on the same modem because it puts a simple http connection on the other.

Round-robin should work ok for what Softgod wants though. And OpenBSD should be alot more controllable than an embedded appliance.