Serving wpad.dat with F5?

You can "serve" a page from LTM using HTTP::respond 200 content $http_content:

   
   when HTTP_REQUEST {   
      
       Check if request is for wpad.internal/wpad.dat   
      if {[string tolower "[HTTP::host][HTTP::uri]"] eq "wpad.internal/wpad.dat"}{   
      
         HTTP::respond 200 content {\   
             function FindProxyForURL(url, host) {\   
              if(shExpMatch(host, "*[^0123456789.]*") == false) \   
              if( isInNet\(host, "127.0.0.0", "255.0.0.0") \   
              || isInNet(host, "172.17.0.0", "255.255.0.0") \    
              || isInNet(host, "172.18.0.0", "255.255.0.0") \   
              ) \   
              return "DIRECT"; \   
              else \   
              return "PROXY proxygateway.internal:8080; DIRECT"; }   
         }   
      }   
   }   
   

Just escape the new lines in the payload with \. After you add the iRule, test it to make sure the content is as you expect and then run 'b load' to verify the LTM parser handles the meta-characters in the iRule correctly. Running 'b load' will reload the configuration so it shouldn't be done on a live box during production.

Aaron

Great news. Just to be sure - so I must do new virtual server with this iRule only, without pool or nodes, as F5 is my only pool and node and iRule catches all traffic sent to wpad.dat and serve this file?

And I put this VIP address into DNS and F5 will serve it easily? But how van I do alias, as due historical reason I have few aliases, like cache1.pac, cache2.pac, which all right point to the wpad.dat file being symlinks in one Linux apache server, which serves right now this wpad.dat.