How to balance load on two ADSL links?

[ha_lh]

Hi all,

Pls help me solve this technical problem: How to balance load on the two ADSL links?

My private network is under upgrading process, so we must reuse the two of ADSL links. Router 3725 connects to these modems and I want to sharing load b/w them. Outgoing traffic can be carried out with policy routing, but how can I care for incomming traffic?

Many thank in advance!

[vcjones]

Returning traffic will come back in whichever ADSL link the original request went out on (determined by the source address of the packet after being NATted). So adjust which internal users use which ADSL link for their surfing until you get the desired load balancing.

This assumes you have standard ADSL with a single IP assigned to each line. If you have multiple IPs assigned to each line, the answer remains logically the same (it just applies to all the IPs). If the same IPs are assigned to both lines, than it is up to your ISP to do the load balancing.

Good luck and have fun!

Vincent C Jones

www.networkingunlimited.com

[ha_lh]

Got your idea with many thanks,

But, how about the incomming traffic that is originated outside?

We use some Public Servers and need to control incomming traffic to appropriate Servers as the way we want it does, let's say, HTTP server access requests will come at ADSL link 1, FPT server access requests will come at ADSL link 2?

Pls help me soon!

[vcjones]

Incoming traffic that is originated outside will come in whichever DSL link supports the IP address used by the outside client to reach you. Typically, an outside client gets your IP address using DNS, so your load balancing would be driven by how you set up DNS.

If by some miracle, your service providers support the same IP on both DSL links, then load balancing is up to your service provider and you need to talk with them.

Good luck and have fun!

Vincent C Jones

www.networkingunlimited.com

[ha_lh]

Oh, so it's very limited for me to control in/out traffic. God, hope that I can solve this problem when we finish the migration process with new two leased line 2M. BGP multi home will let me more optional,

Many thanks,