topic ASA and MSN, ICQ etc. blocking in Network Security https://community.cisco.com/t5/network-security/asa-and-msn-icq-etc-blocking/m-p/614117#M426911 <P>Hello,</P><P></P><P>is it possible to block ICQ, MSN http headers with the ASA Firewall? If yes can you give me a hint how to implement these rules?</P><P></P><P>Thanks</P> Fri, 21 Feb 2020 09:17:11 GMT larsdominic 2020-02-21T09:17:11Z ASA and MSN, ICQ etc. blocking https://community.cisco.com/t5/network-security/asa-and-msn-icq-etc-blocking/m-p/614117#M426911 <P>Hello,</P><P></P><P>is it possible to block ICQ, MSN http headers with the ASA Firewall? If yes can you give me a hint how to implement these rules?</P><P></P><P>Thanks</P> Fri, 21 Feb 2020 09:17:11 GMT https://community.cisco.com/t5/network-security/asa-and-msn-icq-etc-blocking/m-p/614117#M426911 larsdominic 2020-02-21T09:17:11Z Re: ASA and MSN, ICQ etc. blocking https://community.cisco.com/t5/network-security/asa-and-msn-icq-etc-blocking/m-p/614118#M426916 <HTML><HEAD></HEAD><BODY><P>You can try blocking the below ports. But please ensure that you do not block some valid ports.</P><P></P><P>Yahoo:</P><P>TCP: 80, 5000-5050</P><P>UDP: 5000-5050</P><P></P><P>MSN:</P><P>TCP: 1863, </P><P>UDP: 1503, 3389, 5004-65535 </P><P></P><P>AOL IM:</P><P>TCP: 5190-5193</P><P>UDP: 5190-5193</P><P></P><P>NetMeeting:</P><P>TCP: 1720, 1024-1503, 1504-65534 </P><P>UDP: 1024-65534</P><P></P></BODY></HTML> Tue, 07 Nov 2006 11:24:45 GMT https://community.cisco.com/t5/network-security/asa-and-msn-icq-etc-blocking/m-p/614118#M426916 zubairjalal 2006-11-07T11:24:45Z