Hello Guys, I have two LANs interconnected with FreeSWAN IPSec tunnel. It's working fine. Gateway in both sides is a linux box running iptables. We're running ICQ Groupware Server and ICQ Groupware clients for instant messages. I need, somehow, block ICQ File transfers, but I cannot block ICQ messages. ICQ Client does not allow this kind of config. I was thinking on some string match to block the initial ICQ File transfer request. Question is: do anybody here has the string I'm looking for ? Has anyone experienced a similar problem ? Sincerily, Leonardo Rodrigues