irule to source route traffic using a VIP

Hello,

I would like to split traffic outbound from load balanced servers to different routers/gateways using irule. i want servers with subnet 192.168.10.0/24 to use default route 0.0.0.0 and use old core router. i want servers with subnet 192.168.20.0/24(translated to 192.168.30.0/24) to use a different route and exit using a new core router.

i created a vip(called wildcard) with default route 0.0.0.0 and a pool that has old core router. i create an irule ans i associated it with the vip above to split traffic based on source traffic originated from server snated to 192.168.30.0 SNAT_GW_POOL and VIP_GW_POOL are the new core router interfaces.

please help me out if you have done this before or know how to fix it...this is outbound traffic from load balanced servers trying to exit from the F5.

when CLIENT_ACCEPTED { 
    if { [IP::addr [IP::client_addr] equals 192.168.30.0.0/24]} 
        { pool SNAT_GW_POOL event disable all } 
    elseif { [IP::addr [IP::client_addr] equals 192.168.20.0/24]} 
        { pool VIP_GW_POOL event disable all } 
}