topic Re: pix and irc and icq in Network Security https://community.cisco.com/t5/network-security/pix-and-irc-and-icq/m-p/71340#M684412 <HTML><HEAD></HEAD><BODY><P>The ports are as follows</P><P>IRC is TCP 6667</P><P>If you have a look at the following url this has the information for ICQ</P><P>http://www.icq.com/icqtour/firewall/netadmin.html</P><P>The main port number is TCP 5190</P><P>but they do use dynamic ports.</P><P></P><P></P><P></P><P></P><P></P></BODY></HTML> Mon, 24 Jun 2002 21:38:04 GMT 2002-06-24T21:38:04Z pix and irc and icq https://community.cisco.com/t5/network-security/pix-and-irc-and-icq/m-p/71339#M684388 <P>how to prevent users in a campus from using chat programs with a pix firewall. Do you know the ports of icq and irc.</P><P></P><P></P><P></P><P></P> Fri, 21 Feb 2020 06:06:53 GMT https://community.cisco.com/t5/network-security/pix-and-irc-and-icq/m-p/71339#M684388 admin_2 2020-02-21T06:06:53Z Re: pix and irc and icq https://community.cisco.com/t5/network-security/pix-and-irc-and-icq/m-p/71340#M684412 <HTML><HEAD></HEAD><BODY><P>The ports are as follows</P><P>IRC is TCP 6667</P><P>If you have a look at the following url this has the information for ICQ</P><P>http://www.icq.com/icqtour/firewall/netadmin.html</P><P>The main port number is TCP 5190</P><P>but they do use dynamic ports.</P><P></P><P></P><P></P><P></P><P></P></BODY></HTML> Mon, 24 Jun 2002 21:38:04 GMT https://community.cisco.com/t5/network-security/pix-and-irc-and-icq/m-p/71340#M684412 2002-06-24T21:38:04Z Re: pix and irc and icq https://community.cisco.com/t5/network-security/pix-and-irc-and-icq/m-p/71341#M684420 <HTML><HEAD></HEAD><BODY><P>common chat ports you can block:-</P><P></P><P>tcp 6667 (irc) 6660- 6670 (the default being 6667).</P><P>tcp 6665-6669 (common IRC)</P><P>tcp 5190 (aol)</P><P>tcp 5190, dyn &gt;=1024 (aol ICQ)</P><P>tcp/udp 5190-5193 (aol)</P><P>tcp 1863 (msn)</P><P>tcp/udp 4020 (ichat)</P><P>tcp 5000-5001 and udp 5000-5010 (Yahoo voice chat)</P><P>tcp 5050 (Yahoo messages)</P><P>tcp 5100 (Yahoo Webcams)</P><P></P><P>HTH</P><P>R/Yusuf</P></BODY></HTML> Tue, 25 Jun 2002 09:30:56 GMT https://community.cisco.com/t5/network-security/pix-and-irc-and-icq/m-p/71341#M684420 yusuff 2002-06-25T09:30:56Z