The routing table would not be consulted to make routing decisions under this configuration, so direct routing between the VLANs would not be possible. In the scenario given (separate customer networks), one of the unstated goals would be to avoid that possibility. If you require routing of specific traffic between VLAN A and VLAN B, you could apply an iRule to each of the wildcard VS's which inspects the traffic and conditionally uses the 'pool' command to select the appropriate gateway pool , or the 'forward' command to route the traffic according to the routing table. HTH!