Security Basics mailing list archives
RE: NetScreen XP and NetMeeting
From: "Gunn, Jeff" <Jeff.Gunn () FMR COM>
Date: Thu, 12 Dec 2002 13:41:11 -0500
Let me preface this by saying I know nothing about Netmeeting, but I've had to set up similar services through firewall devices. ;) Are you a client connecting to the internet through a firewall and trying to establish a netmeeting connection, or are you setting up a Netmeeting server for other people to get to? The article seems to be aimed at an end-user who is trying to configure a personal firewall to allow Netmeeting connections out. The big scary-looking range of ports (1024-65535) are outbound UDP ports, which is a very common requirement. A lot of firewalls allow this by default because it can be (sometimes incorrectly) assumed that a connection originating from behind the firewall going out to the internet should be allowed. If you are trying to set up a server for other people to connect into, though, your requirements will probably be different. I could be reading it wrong, but it doesn't seem like the article from MS really adresses that. -Jeff
-----Original Message----- From: Sarbjit Singh Gill [mailto:ssgill () gilltechnologies com] Sent: Wednesday, December 11, 2002 2:37 PM To: security-basics () lists securityfocus com Subject: NetScreen XP and NetMeeting Greetings, As the subject goes, i need to get net meeting to work via NetScreen. I found a KB article(http://support.microsoft.com/default.aspx?scid=kb;en-u s;158623) but it seems to show, i had to open a whole range of ports. I am skeptical about that! e.g.. Pass through primary TCP connections on ports 522, 389, 1503, 1720 and 1731. Pass through secondary UDP connections on dynamically assigned ports (1024-65535). the above shows a whole range of ports that i have to open. Is there a work around. Kind Regards Gill
Current thread:
- RE: NetScreen XP and NetMeeting Sarbjit Singh Gill (Dec 12)
- Re: NetScreen XP and NetMeeting Igor D. Spivak (Dec 13)
- RE: NetScreen XP and NetMeeting HOULE, FRANCIS (Dec 13)
- RE: NetScreen XP and NetMeeting Sarbjit Singh Gill (Dec 16)
- <Possible follow-ups>
- RE: NetScreen XP and NetMeeting Murat_Korkmaz (Dec 12)
- RE: NetScreen XP and NetMeeting Gunn, Jeff (Dec 13)
- RE: NetScreen XP and NetMeeting Sarbjit Singh Gill (Dec 16)
- AW: NetScreen XP and NetMeeting Robert Sieber (Dec 16)
- RE: NetScreen XP and NetMeeting Gunn, Jeff (Dec 16)
- RE: NetScreen XP and NetMeeting Brian Bruns (Dec 17)
- RE: NetScreen XP and NetMeeting Sarbjit Singh Gill (Dec 18)