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Old 11-01-2011, 06:52 AM   #1
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Internet Gateway Tricky Question


I have 4 DSL lines for the internet access and I have to share the internet on my LAN (almost 200 nodes). I'm planning to have a dedicated server for this task having 5 GbE ports, because each DSL modem gives out Ethernet link.
Is this possible via iptables?? and some kind of link aggregation is possible? How can I handle and performs NAT on local ip addresses given by DSL modems?? Any suggestions?

Old 11-02-2011, 01:27 AM   #2
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I really have nothing to go on, but a google search for "multiple DSL load balancing" turned up a few results that might help..

From what I read its not possible to bond the connections together for one super fast connection, but it is possible to distribute the load between the 4 connections...
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Old 11-02-2011, 01:55 AM   #3
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Hi, what you want is called device bonding (or aggregation). Bonding multiple network devices into one. Then you can set up different priotities for the specific devices. Official kernel docs. A howto I found.


Last edited by serafean; 11-02-2011 at 01:57 AM.
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Old 11-02-2011, 06:28 PM   #4
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Normally one uses load balancing but you could use ip address set to ranges to route and thereby balance.
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ics, ipchains, iptables, masquerading, nat

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