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Recommendation on a VPN Router for (2) small offices with QOS.

Posted on 2010-09-15
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Last Modified: 2012-05-10
We have two small offices with about 5 people in each.  Each office has a T1 connection with bundled telephone connections with (4) lines.  Each office has a Sonic Wall TZ150 routers with a VPN tunnel setup.  We have NEC Aspire S NEC KSU's connected to the VPN to provide VOIP intercom between the offices.

The problem occurs when someone is transmitting data and somone is trying to intercom.  The data transmission steps all over the voice and we getting clipping of the conversation.  We have to wait for the data transmission to complete before continuing the conversation.

I understand this is a QOS issue.  If I had a router with QOS cabability could I limit the bandwidth on the data transmission accross the VPN?  Can I limit the transmissions going direct to and from the internet?  

Is there a router you would reccommend that is under $500.00 with a simple GUI that I could use to help my problem.

Thanks.
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Question by:JScho10
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by:jfaubiontx
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The TZ150 supports bandwidth management on the VPN already. It isn't as advanced as one running SonicOS Enhanced but it should work.

How to configure bandwidth management
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by:arshana
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Try using a linux based firewall/ vpn . I have been using it and it has all features available. Whats more it comes free. (http://www.clearfoundation.com/Software/overview.html) let me know if you need any help to configure it.
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by:JScho10
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Arshana,
Not sure I understand.  What hardware do I use? Is that Dyanmic VPN on the website?
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by:arshana
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Its a software based thing. you can download it and install on ur pc it will act as a router.
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by:jfaubiontx
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Why not use the router that is already in place? Unless someone is paying you to spend time learning a new software router, I can't see how building a new router can possibly be as cost effective as using the one already connected. Am I missing something?
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by:digitap
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You can run the enhanced OS on the TZ150.  Go to the WAN interface and specifiy your bandwidth in and out.  When you enable this, another tab appears under the firewall access rules.  This will allow you to established guaranteed bandwidth for your important traffic.  Of course, you have to have enhanced OS.
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by:JScho10
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Digitap,
I like that solution but everywhere I look, it shows that TZ150 does not support enhanced OS.  Am I wrong?
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by:digitap
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My deepest apologies.  I checked with our resources and Enhanced is not supported on the TZ150.  I believe I was confusing it with another model.  I'm sorry about that.  It's never my intent to give out misinformation.

The assessment in the solution here, http:#a33682835, is the accurate one for the TZ150.

If you want to better bandwidth management than what is provided by the sonicwall tz150, then you'll need to look at one of the other solutions listed here in the discussion.

Again, sorry for the confusion.
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by:JScho10
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Back to my original post.  If I were to purchase two new VPN Routers under $500.00 each with my said conditions, can someone offer some recommendations.
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by:jfaubiontx
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If you only need a few tunnels the Linksys (Cisco) RV042 works well and at $160-$180 each doesn't hurt the wallet too bad. If you need more tunnels to support remote users, the RV082 handles 50 QuickVPN users and 100 IPSEC tunnels. The RV082 is around $300 each. At that price though you can pick up a TZ100 which does support SonicOS Enhanced.
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JScho10 earned 0 total points
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Purchased two Sonic Wall TZ100 w/Wireless-N Routers with SonicOS Enhanced.  TZ100 looks to have 3 times the processing power of my old TX150's.  Like the lots of BWM funtionality of the SonicOS Enhanced.  Thanks for advice!
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by:digitap
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Yes, I installed my first TZ100 the other day.  It is a nice and compact appliance that packs in a lot of performance.  Glad you found a solution and thanks for the points!
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by:digitap
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thanks for the points!
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