Load balancing with NAT

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Feb 23rd, 2009
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Hello,


If all the clients are behind an ISP and as a result coming in with a single NAT address is it still possible to attain load balancing across multiple servers using "predictor hash address dest 255.255.255.255"?


Thanks,

Murtaza

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freost Mon, 02/23/2009 - 12:21
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Coming from a single NAT source IP address, you may want to consider some form of alternative load balancing besides source IP(such as cookie, x-forwarded-for header, etc). A source IP address is a source IP address and is not likely to give you the results you need if the NAT IP address doesnt change.

hussainmo Tue, 02/24/2009 - 00:02
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Sticky Src IP is what I am trying to avoid. As the client session are L2TP I can't use cookie stickiness. So that is why I was thinking about using dest hash based load balancing on the ACE.

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