Hi Amos and Chris >> First question for general: does it work? >> > > So, for example, your P1 proxy has an IP address of 10.0.0.5 and your P2 > proxy has an IP address of 10.10.10.5. Your client (10.20.20.200) makes > a request for a web object from 10.0.0.5 and (since it has already made > a request and "knows" that authentication is required) sends it's > authentication credentials. 10.0.0.5 sends the request to 10.10.10.5. > There is no way for 10.10.10.5 to send a reply to 10.20.20.200, as there > is no TCP connection to send the reply on. > >> Second question if it works: how do I configure this? OK. This means in fact, it doesn't work. Thanks Volker