Hi, Yes the forthcoming version provides you to block P2P applications including yahoo messenger. smart defense will do it for you by seeing the packet header like msg for yahoo messenger. This is true for other IM also. If it is not listed you can always block the traffic based on header.
Regards Chandra Prakash CISSP, CCNA, CCSA, MCSE Quoting Ray Pesek <[EMAIL PROTECTED]>: > Sort of. As long as you restrict outbound connections to authorized > servers > and do not allow > > Source: any_internal > Destination: any > Service: any > > it will work. AI works primarily on port 80 traffic, which usually has > to be > open for most companies. A forthcoming version will allow P2P blocking > regardless of the port. I think IM was included, but am not positive. > > Ray > > > >From: X Xpid <[EMAIL PROTECTED]> > >Reply-To: Mailing list for discussion of Firewall-1 > ><[EMAIL PROTECTED]> > >To: [EMAIL PROTECTED] > >Subject: Re: [FW-1] how to block MSN, AOL, Yahoo messenger with R54 or > R55 > >Date: Tue, 11 May 2004 19:32:52 -0400 > > > >Why are we still talking about blocking applications > >such as MSN,AOL and Yahoo messenger based on tcp > >ports? > >Weren't r55 and future ones able to block based on > >Application Intelligence? > > > > > > > > > > > > > >The MSN under R54 should work... Unless it's a brand > >new client with differing ports? > > > >All versions seem to use different IP ranges but > >blocking access to these IP's should work. > > > >Allow: 65.54.244.42 - Hotmail (if u like) > >Block: 65.52.0.0 - 65.55.255.255 > >Block: 207.68.0.0 / 255.255.0.0 > >Block: 207.46.0.0 / 255.255.0.0 > > > > > >BR > > > >Rob > > > >______________________________________________________________________ > >Post your free ad now! http://personals.yahoo.ca > > > >================================================= > >To set vacation, Out-Of-Office, or away messages, > >send an email to [EMAIL PROTECTED] > >in the BODY of the email add: > >set fw-1-mailinglist nomail > >================================================= > >To unsubscribe from this mailing list, > >please see the instructions at > >http://www.checkpoint.com/services/mailing.html > >================================================= > >If you have any questions on how to change your > >subscription options, email > >[EMAIL PROTECTED] > >================================================= > > _________________________________________________________________ > Stop worrying about overloading your inbox - get MSN Hotmail Extra > Storage! > http://join.msn.com/?pgmarket=en-us&page=hotmail/es2&ST=1/go/onm00200362ave/direct/01/ > > ================================================= > To set vacation, Out-Of-Office, or away messages, > send an email to [EMAIL PROTECTED] > in the BODY of the email add: > set fw-1-mailinglist nomail > ================================================= > To unsubscribe from this mailing list, > please see the instructions at > http://www.checkpoint.com/services/mailing.html > ================================================= > If you have any questions on how to change your > subscription options, email > [EMAIL PROTECTED] > ================================================= > ================================================= To set vacation, Out-Of-Office, or away messages, send an email to [EMAIL PROTECTED] in the BODY of the email add: set fw-1-mailinglist nomail ================================================= To unsubscribe from this mailing list, please see the instructions at http://www.checkpoint.com/services/mailing.html ================================================= If you have any questions on how to change your subscription options, email [EMAIL PROTECTED] =================================================
