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Or_A_157009's avatar
Or_A_157009
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Mar 01, 2016

F5 iRule - Change node dynamically and keep the default pool

Hello,   i have written an iRule that changes the destination ip of the http request, it's done by:   node $destProxy $destPort   after doing that the request goes to the default gateway of ...
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Vernon_97235's avatar
Vernon_97235
Historic F5 Account
Mar 01, 2016

Are you trying to control how the packet is routed toward the destination address? If so, you can utilize the nexthop command.

I will say that you can, in fact, use a pool as the default gateway, if that's what you really want:

tmsh create net route default network default pool /Common/some-pool-or-another
  • Or_A_157009's avatar
    Or_A_157009
    Icon for Cirrus rankCirrus
    Mar 01, 2016
    hey, thanks for the answer. i want to keep my existing default gateway for other traffic. for this specific irule i want a different pool as a gateway. the next hop is a good option if the gateway is one, but in my setup i have a pool with 2 nodes for round robin. the only thing i could think of is a virtual mac at the gateways...
  • Vernon_97235's avatar
    Vernon_97235
    Historic F5 Account
    Mar 01, 2016
    Can you insert a specific route to the destination in question? That is, if the node is a single address, say 74.56.1.5, can you add a route for 74.56.1.5/32 pointing to the pool you desire?
  • Or_A_157009's avatar
    Or_A_157009
    Icon for Cirrus rankCirrus
    Mar 02, 2016
    no, the node is dynamic, changes from time to time. but i have figured it out without the node command. got another device after the f5 to do this exact job. thanks!