Vinay The default port for IRC is 6667, isa allows for this in its protocol definitions by default. However, IRC will also randomly try to connect with other ports (6660-6669) or something like that so sometimes it will not connect. There are two ways around this. 1. Create a protocol definition for each of these ports (one for 6660, one for 6661 etc. This becomes very messy. 2. In the connection window in IRC, next to the server you connect to you can choose the edit button and set the port that you connect on. Set that to 6667 and you should be OK. HTH Greg Mulholland Technical Service Manager Harvey Norman - Knox Melbourne, Australia greg_mul@xxxxxxxxxxxxxxx +613 9881-3730 -----Original Message----- From: Vinaykumar G [mailto:G.VINAY@xxxxxxxxx] Sent: Monday, March 31, 2003 7:29 PM To: [ISAserver.org Discussion List] Subject: [isalist] IRC connection behind ISA Hi all, I would like to know as how IRC can be allowed for the clients behind ISA(integrated mode). I have a secure NAT client and would like to connect to IRC server. I have already opened TCP port 6667 for both inbound and outbound but still no luck. Please advice as what other configuration is required for IRC to work behind ISA. Regards, Vinay.