Thanks for your answer Henrik!!!! > > > Here comes the funny part...well...I do even need that these two squid > > could use two different squid_parent via ICP. Going this way, I do need > > that the squid having the layer 7 switch in front could even use their > > real IP address to communicate with their own squid_parent. Could I use > > something like this in squid.conf to make everything work? > > > > udp_incoming_address real_ip_address > > udp_outgoing_address 255.255.255.255 > > Not need to do this, just leave them at the defaults allowing Squid to use > the real IP of your server as provided by the OS. > > Same thing for tcp_outgoing_address. > > Regards > Henrik Well, maybe I was not that clear in my explanation (my english fault! : P) I was speaking about the same squid behind the layer 7 switch! I mean, those two squid behind the layer 7 switch must conect on one side with the layer 7 switch, using the Virtual IP address, and on the other side with other two parent squid with their real IP address...or something like this! That's why I was asking if I should modify udp_incoming_address and udp_outgoing_address! But I have another doubt too: those two directives (udp_incoming_address and udp_outgoing_address) change the ip address that squid uses to make ICP queries, what happens after squid has queried using ICP, I mean, what address does it use to retrieve the content it needs from the parent_squid? Does it use the virtual IP address or the real one? Thanks you very much for you patience Henrik! Marco