F5 iRule - Change node dynamically and keep the default pool

Question

Hello,&nbsp;
i have written an iRule that changes the destination ip of the http request, it's done by:&nbsp;
node $destProxy $destPort&nbsp;
after doing that the request goes to the default gateway of the f5 appliance instead of the default pool assigned to the virtual server.&nbsp;
i guess the node overrides the default pool.&nbsp;
is there a way to use the node inside the iRule and keep the default pool?&nbsp;
just to mention, the default pool has more than one nodes so it cannot be the default gateway.&nbsp;
thanks&nbsp;
or&nbsp;

vernon_97235 · Answer

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

vernonwells · Answer

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 · Answer

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...

or_a_157009 · Answer

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...

vernonwells · Answer

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?

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F5 iRule - Change node dynamically and keep the default pool

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