Irules and Internet connections for Servers with non-routable IP addresses

The existing VIP is defined as 0.0.0.0:0, so that's what I'm trying at the moment, assuming that IP::remote_addr contains the destination IP address. There's an example from the architectiing class that I'm trying to modify.

     
      when CLIENT_ACCEPTED {      
      check to see if client ip is in the class      
      if { [matchclass [IP::client_addr] equals $:: PrivateOnCampus] } {      
      Check to see if the remote_addr is in the class      
      if { [matchclass [IP::remote_addr] equals $:: OffCampusServers] } {      
      if both of the above are correct, snat it      
      snat 152.xxx.xxx.xxx      
      } else {      
      if no match forward without address rewrite.      
      forward      
      }      
      }      
      } 

I've replaced the snat and forward statements above with logging statements, so I can see first what the traffic looks like.