Dual WAN Network

Hello,

I'm new to networking and need help with design/config.  We have two internet providers (T-1 for 35 VoIP phone and FIOS for everything else).  Currently our networks are separated by two routers and everything is working fine.  I want to use a dual WAN router primarily for it's fail-over feature since our business is critically dependent on a working internet connection.  I would like to know what would be the best network design for us to use dual-wan fail over router and two switches (one switch for voip phones and the other for everything else).  I want to keep traffic separated where voip phones are solely using T1.  Also would be a good idea to create 2 VLANs (for voip and data).

Dual WAN router: Cisco RV042G
Switches:  
Netgear GS748TP ProSafe 48-port 10/100/1000 Smart PoE Switch for VoIP
Netgear ProSafe 48-Port Gigabit Smart Switch (GS748TNA) for data

Any idea would be greatly appreciated.
Pedro GuerreroSystems AdministratorAsked:
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nickoargCommented:
Hi Pedro, if you have a switch exclusively for VoIP phones, then there is no need to use vlans.

With the RV042G you already have automatic failover for the wan links with the option "smart link bakup".

Did you try that?
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Pedro GuerreroSystems AdministratorAuthor Commented:
I tried that but we get too much traffic on that single network  (voip phones and data together on one vlan).  What ends up happening is that phone quality worsens (we experience drop calls).  Need to figure out a way where voip switch exclusively uses T-1 and also keep voip and data traffic completely separated.
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masnrockCommented:
You are going to be better off with a different firewall. I'd tell you to get a Sonicwall for its simplicity. The RV042G will not support everything you want to do. A Sonicwall isn't too hard to configure for multiple WANs and LANs, plus you should not need to change anything on the switches or phones. A Sonicwall TZ215 would be a decent model for your purpose.

Link discussing limitations of the RV042G: https://supportforums.cisco.com/discussion/11576126/rv042-multiple-subnets

BTW - You do *not* need VLANs, as your environment does not call for that. Just two physically separate LANs.
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Pedro GuerreroSystems AdministratorAuthor Commented:
Thanks.  With the Soniocwall, would I be able to setup failover as well?  And with two physically separate Lans, would failover still work?
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masnrockCommented:
Yes to both questions. And Sonicwall support is pretty cool about walking you through things if you need their assistance to set things up. Naturally, you can always ask us as well.
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Pedro GuerreroSystems AdministratorAuthor Commented:
Thanks very much.  Last question, with this Sonicwall, will I still need a router, or does sonicwall act as the router?
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masnrockCommented:
The Sonicwall acts as the router, so no need to buy a router. Also, do not buy the units with integrated wireless. Just get access points.
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Pedro GuerreroSystems AdministratorAuthor Commented:
Got it thanks.   If I have questions on configuring ports, do I post here on or a new thread?
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masnrockCommented:
You would create a new thread, and experts will gladly assist.

Here's a link you can check out to compare models of Sonicwall TZ series firewalls. So you can keep up gigabit speeds, look no lower than the TZ-205. The TZ-215 provides some additional ports, features, and performance.

http://www.sonicwall.com/us/en/products/TZ-Series.html#tab=comparea
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