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Michael_Omaljev's avatar
Michael_Omaljev
Icon for Nimbostratus rankNimbostratus
Sep 25, 2007

SNAT issue

We have been undertaking a server consolidation of our Web Logic applications servers hosted on Solaris - part of this consolidation is positioning us to move towards a fully load balanced environment. The architecture requires that a client and destination app reside on the same physical server but different weblogic instance.

 

 

The problem I see happening in that when the client communicated to the F5 loadbalancer (bigip 9.x) The loadbalancer sends the traffic to the real server and the real server breaks the communicaion flow because the client request is actually coming from the same server nic so it breaks the communication flow. Is there a way with an irule to force the traffic back to the f5 ?

 

 

application delivery
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devops
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  • Deb_Allen_18's avatar
    Deb_Allen_18
    Historic F5 Account
    Sep 27, 2007
    Well, you really sort of answered your own question with the subject of your post: Configure a SNAT on the server-facing VLAN and the response traffic will be forced back to LTM before returning to the client:

    Request will then look like this:
    (clientIP -> VSIP) ->LTM-> (SNATIP -> serverIP)

    And responses like this:
    (serverIP -> SNATIP) ->LTM-> (VSIP -> clientIP)

    No iRule required...

    HTH

    /deb