You can do the same thing that you do to block napster. Find the
authentication server(s) IP range and block access to those IP addresses.
If they can't authenticate, they can't communicate.
----- Original Message -----
From: "Nabil Fares" <[EMAIL PROTECTED]>
To: "Patrick Bass" <[EMAIL PROTECTED]>; <[EMAIL PROTECTED]>
Sent: Tuesday, January 23, 2001 3:01 PM
Subject: RE: Disabling American Online Instant-messenger(AIM) and Yahoo IM
> Disabling these ports to prevent users from using these application isn't
> going to do you any good. Simply put, both apps use port 80 as the last
> option to access their servers. I'm not really sure you can stop these
> users!.
>
> Nabil
>
> -----Original Message-----
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
> Patrick Bass
> Sent: Tuesday, January 23, 2001 1:58 PM
> To: [EMAIL PROTECTED]
> Subject: Re: Disabling American Online Instant-messenger(AIM) and Yahoo
> IM
>
>
> Find out the server IPs and use outbound deny at the pix. I did this to
> block napster and other bandwidth hogs.
>
> Frank Kim <[EMAIL PROTECTED]> wrote in message
> [EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> > Has anyone implemented port filtering to disable AOL instant messenger
and
> > Yahoo instant messenger? If you have, could you send me the ports they
> > use on those? Could you also tell me what techniques you used, doing it
> > at the firellwall(pix) or the router? Thanks for any input.
> >
> > -Frank
> >
> >
> > _________________________________
> > FAQ, list archives, and subscription info:
> http://www.groupstudy.com/list/cisco.html
> > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
> >
>
>
> _________________________________
> FAQ, list archives, and subscription info:
> http://www.groupstudy.com/list/cisco.html
> Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
>
> _________________________________
> FAQ, list archives, and subscription info:
http://www.groupstudy.com/list/cisco.html
> Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
>
_________________________________
FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html
Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
