Hi, We use a product called Centra (http://www.centra.com). It's a nice product that does audio and video and app sharing combined. It works on port 80 with a performance hit - minor I believe so long as the overall link's good. Open another port for better performance and the downloads are pretty small (1MB to get you going I think). The downsides are cost, it runs only on Windows platforms right now (so it's many a hotfix for IIS:) and I believe it does go over UDP. I'd say we're happy with it and it's worth a look as a best-of-breed solution.
If you want my two cents I'm a great believer in carefully set routers and firewalls - if you know the traffic patterns you're looking for even UDP shouldn't be an issue. The other thing is that using a product like netmeeting makes you a lot more exposed than using a product like Centra. Not many people use Centra so no one is going to waste their time trying to utilise it as a means of attack. It's not the best defence by a long way but it does count. Robert. -----Original Message----- From: Sadler, Connie J [mailto:[EMAIL PROTECTED]] Sent: 12 November 2001 17:36 To: [EMAIL PROTECTED] Cc: James Paterson; [EMAIL PROTECTED] Subject: RE: Firewall Friendly Video Conferencing But some forms of traffic are much worse than others - I'd rather have inbound ftp, for example, which can be controlled, than UDP, which offers up a much bigger risk... that's the problem with Netmeeting, from what I understand - it's the UDO protocol that is difficult to manage. -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] Sent: Monday, November 12, 2001 10:59 AM To: Sadler, Connie J Cc: James Paterson; [EMAIL PROTECTED] Subject: RE: Firewall Friendly Video Conferencing Any application you use will potentially make you vulnerable to exploits being sent to that application/port which is opened up in the firewall. So that is why you need to be careful on exactly what applications get used on your LAN. If you open up a certain port, you run the risk of unintended traffic coming into your network through that port. Firewalls themselves cannot distinguish between bad traffic and good traffic going through a port you opened up. That's where getting some form of IDS on your network will help you ensure only good traffic is coming/going through your LAN. Cavell McDermott Domino Admin APW Ltd. - Texas Campus 214-343-1400 - Main 214-355-2039 - Helpdesk 214-341-9950 - Fax http://www.apw.com "Sadler, Connie J" To: [EMAIL PROTECTED], James Paterson <csadler@bnl. <[EMAIL PROTECTED]> gov> cc: [EMAIL PROTECTED] Subject: RE: Firewall Friendly Video Conferencing 11/10/2001 06:43 PM Doesn't Netmeeting behind firewalls still make the clients vulnerable to exploits? -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] Sent: Friday, November 09, 2001 12:43 PM To: James Paterson Cc: [EMAIL PROTECTED] Subject: Re: Firewall Friendly Video Conferencing Lotus Sametime.. But you incur the expense of a Domino license. I've also had good success with Netmeeting with both parties being behind firewalls. Cavell McDermott Domino Admin APW Ltd. - Texas Campus 214-343-1400 - Main 214-355-2039 - Helpdesk 214-341-9950 - Fax http://www.apw.com James Paterson <jpaterson@datam To: [EMAIL PROTECTED] irror.com> cc: Subject: Firewall Friendly Video Conferencing 11/08/2001 03:55 PM Does anyone know of a good firewall friendly desktop video conferencing product? Thanks J. FT Knowledge - World Business Education www.ftknowledge.com The information in this email is confidential and may be legally privileged. It is intended solely for the addressee. Access to this email by anyone else is unauthorised. If you are not the intended recipient, any disclosure, copying, distribution or any action taken or omitted to be taken in reliance on it, is prohibited and may be unlawful. Nothing in this email is intended to create a legally binding relationship and FT Knowledge will not accept responsibility for loss to any person acting or refraining from acting as a result of this email.
