Balancing SMPP traffic based on recipient address

Hello everyone, i have a similar request. Requests are to hit load balancer ip, to two smpp firewalls to the SMSC.

Requests are to hit the loadbalancer each time before getting to any of the smpp firewalls. Which means the loadbalancer is hit thrice.

Is there any irule to ensure that once requests hit the loadbalancer, binds are formed with two or three smpp backend servers