Solved

How to allow H323 over ISA 2006 SP1 without any disconnections

Posted on 2009-04-14
9
883 Views
Last Modified: 2012-08-13
I am trying to establish a video conferencing session over H323 protocol over ISA 2006 with SP1. The connection gets established and suddenly disconnects within seconds. Both Audio and Video are available during the connection. How to avoid the sudden disconnection and extend the VC session?

Thanks

Ansar Mohideen
0
Comment
Question by:Ansarmoh
  • 5
  • 4
9 Comments
 
LVL 2

Expert Comment

by:thomaslberg
ID: 24136924
Create a rule with the following properties.
 
 Action - Allow
 Protocols - H.323 Protocol
 From - External
 To - Internal
 Users - All Users
 
 This rule is a bit to open to use but if you can get a connection with it you should then secure it a bit more by allowing only certain users etc.
0
 

Author Comment

by:Ansarmoh
ID: 24136941
I have done that. bit the sudden disconnection after VC session setup continues.

0
 
LVL 2

Expert Comment

by:thomaslberg
ID: 24137034
0
 

Author Comment

by:Ansarmoh
ID: 24137183
The disconnection still there even after creating 3 more rules as per the above link.

Thanks

Ansar
0
Find Ransomware Secrets With All-Source Analysis

Ransomware has become a major concern for organizations; its prevalence has grown due to past successes achieved by threat actors. While each ransomware variant is different, we’ve seen some common tactics and trends used among the authors of the malware.

 
LVL 2

Expert Comment

by:thomaslberg
ID: 24137262
Let me do a little research on this and I will get back later today.
0
 

Author Comment

by:Ansarmoh
ID: 24137269
Fine. Thank you very much for your quick responses and look forward to your reply soon.

Ansar
0
 
LVL 2

Expert Comment

by:thomaslberg
ID: 24146995
I have checked with all the people I know and no one seems to have an answer for this.

Are their any other devices in the chain? Router, Firewall, etc?
0
 

Author Comment

by:Ansarmoh
ID: 24147015
I am doing a double NATing. first ISA 2006 then PIX 515. I connected behind pix. it is working fine.
when I connect behind ISA the disconnection is happening
0
 
LVL 2

Accepted Solution

by:
thomaslberg earned 500 total points
ID: 24147501
That is your issue. I have read all over the web that ISA don't handle double NATing well. Especially for high bandwidth applications.

http://www.experts-exchange.com/Security/Software_Firewalls/Enterprise_Firewalls/Cisco_PIX_Firewall/Q_22765559.html
0

Featured Post

What Should I Do With This Threat Intelligence?

Are you wondering if you actually need threat intelligence? The answer is yes. We explain the basics for creating useful threat intelligence.

Join & Write a Comment

Suggested Solutions

Title # Comments Views Activity
Lync 2013 Edge Without DMZ 6 1,355
TMG ISP Redudancy and DNS 11 643
RDP to TMG Firewall 6 284
Proxy (ISA server 2006) is blocking my url 27 242
So the following errors occurs in 2 ways that I am aware of at this stage, and you receive one of the following error messages: ERROR 1. When trying to save a rule: No Web listener is specified for the Web publishing rule Autodiscovery Publishin…
There are several problems reported according slow link speeds or poor performance in TMG 2010, UAG 2010 or ISA 2006. I want to collect here some of the common issues together to give a brief overview what can be the reason. Nevertheless, not all of…
Excel styles will make formatting consistent and let you apply and change formatting faster. In this tutorial, you'll learn how to use Excel's built-in styles, how to modify styles, and how to create your own. You'll also learn how to use your custo…
This tutorial demonstrates a quick way of adding group price to multiple Magento products.

706 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

18 Experts available now in Live!

Get 1:1 Help Now