How to configure Multi-Gateway Balancing on same WAN / ETH ???

aismen

If I have 2 (or more) gateway on same network adapter, can I use load balancer to balancing all internet traffic to LAN ???

Example:

GW1 10.10.0.1 | WAN
GW2 10.10.1.1 | WAN
GW3 10.10.2.1 | WAN
LAN 192.168.0.1 | LAN

It's possible to do? and…what are limitation in comparison of multi-wan load balancing???

I want to use multi-gateway balancing rather than multi-wan because I'll use about 10 internet connection to balance and my server don't support all of these network adapters!

Thanks! ;)

cmb

You'll introduce all kinds of complications doing that, especially if you need any inbound traffic from the Internet to work since there's no possible way to set return routing correctly in that circumstance. Use VLANs instead.

Basiliss

What about using virtual interfaces in VMWare then? I'm interested too in this kind of implementation since I'll have to combine at least 5 connections.

aismen

unfortunately I can not use them because not all hardware in my network supports them! :-\

cmb

Virtual interfaces in VMware is fine too, though those will have to connect to VLANs on the physical network for that scenario to work.

Basiliss

So, to sum up: every wan interface should be either in a different subnet or a different LAN in order for load balancing to function correctly?

In my case, I will use two physical interfaces, one connected with the LAN and bound to one of the VMWare interfaces and the other one physical interface is bound to the rest of the VMWare interfaces which will be used for gateway connecting purposes.

At the moment I conduct some tests with two of the WAN interfaces enabled and put together in a "MultiWAN" group, both as TIER1. Then, I edited the firewall rule for the LAN, in order to force using as gateway "MultiLAN".

However, it seems that there is traffic only on the WAN1 interface (tried to download something through torrent, which supports multiple sessions in order to test it) and worse, when I disconnect my WAN1 router there is no internet access at all. Does the fact that both of the gateways are in the same subnet has to do something with it, or should I configure something else despite the group and the referred firewall rule?

Thanks in advance

Basiliss

I used 5 virtual interfaces under VMWare and used different subnets for each G/W and WAN interface pair. So far it seems that it works as it should.