Solved

Cisco UC520 phone system  Behind ASA firewall.

Posted on 2010-09-16
4
1,195 Views
Last Modified: 2012-05-10
We have an ASA 5520 in place as firewall/rotuer/vpn. We will be adding a Cisco UC520 to our network. I am new ot the UC520 and VOIP .
Can the UC520 stay behind the ASA and still use a SIP gateway service. Does that create issues down the road. I know the UC520 also has firewall/vpn/routing , but not sure if that is going to cause issues.
What had to be done on the ASA and also the UC520 for them to work on the network?
0
Comment
Question by:netcomp
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
4 Comments
 
LVL 4

Assisted Solution

by:ullas_unni
ullas_unni earned 166 total points
ID: 33698613
you need to inspect the voice protocols on the ASA.
0
 
LVL 9

Accepted Solution

by:
Alex Bahar earned 334 total points
ID: 33701099
Do not enable the VPN & firewall on UC520 as you're proving these services on ASA.
Take a lok at the following link for an example ASA configuration>
http://www.experts-exchange.com/Networking/Telecommunications/IP_Telephony/VoIP/Q_24719953.html
On ASA you need to inspect/allow> SIP, RTP. You need to enable QoS for voip.
If you have remote SCCP phones, then you need to inspect skinny as well.
0
 
LVL 9

Assisted Solution

by:Alex Bahar
Alex Bahar earned 334 total points
ID: 33701124
Forgot to say> for your remote SCCP phone you need to open tftp as well. Just follow the example configuration, it has all information you need.
0
 
LVL 3

Expert Comment

by:uniplast
ID: 33701319
In my experience, ASA works very well with the UC500. I am not even any special settings worked, and everything works OK.
In any case, you can turn off the firewall and NAT in UC500
0

Featured Post

Free NetCrunch network monitor licenses!

Only on Experts-Exchange: Sign-up for a free-trial and we'll send you your permanent license!

Here is what you get: 30 Nodes | Unlimited Sensors | No Time Restrictions | Absolutely FREE!

Act now. This offer ends July 14, 2017.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Concerto Cloud Services, a provider of fully managed private, public and hybrid cloud solutions, announced today it was named to the 20 Coolest Cloud Infrastructure Vendors Of The 2017 Cloud  (http://www.concertocloud.com/about/in-the-news/2017/02/0…
There’s a movement in Information Technology (IT), and while it’s hard to define, it is gaining momentum. Some call it “stream-lined IT;” others call it “thin-model IT.”
Both in life and business – not all partnerships are created equal. As the demand for cloud services increases, so do the number of self-proclaimed cloud partners. Asking the right questions up front in the partnership, will enable both parties …
As a trusted technology advisor to your customers you are likely getting the daily question of, ‘should I put this in the cloud?’ As customer demands for cloud services increases, companies will see a shift from traditional buying patterns to new…

734 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