load balancing based on source IP address

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Apr 7th, 2008
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Hi,


I configured a CSS to balance the load depending on source IP address to suppport a application feature in the server.


We have two firewalls and behind we have different users. We have also two servers behind the CSS.


Firewalls perform NAT with a unique outside IP address. So, for example, in these conditions the CSS balances requests coming from FW 1 to server 1 and requests coming from FW 2 to server 2. Is it correct this scenario?


Is it possible that requests coming from FW 1 could be forwarded to Server 2 and viceversa?


Could anyone answer me?


Thanks in advance.


Best regards.


Giuseppe.


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Gilles Dufour Tue, 04/08/2008 - 03:12
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  • Cisco Employee,

Giuseppe,


it all depends on how you configured your CSS.

Did you use an ACL to force traffic from SRC1 to server1 and traffic from SRC2 to server2 ?

Or did you simply configure sticky based on source ip or a source ip hash loadbalancing ?


Except the ACL, all other methods do not guarantee that the traffic will be splitted in 2.


Gilles.

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