Recommened equipment for load balancing a T1 and a Cable internet connection.

I have a customer that is purchasing a T1 for phone and secure tunneling to another office.  They currently have Cable internet with a 3 year contract.  Rather than buying out the contract, I'd like to continue using Cable for internet traffic and the T1 for voice and VPN only.  

The T1 service is from Time Warner and it's their Converged product.  What piece of equipment would you guys recommend for this type of configuration?  

Thanks
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jfeemsterAsked:
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digitapConnect With a Mentor Commented:
You can go with a TZ series sonicwall as the gateway to the Internet and have the T1 router route traffic accordingly.  Anything that's NOT bound for the T1 connection goes out a different gateway (sonicwall).  Or, you could have the sonicwall do all the routing.  Hang the LAN interface of the T1 router off a physical interface of the sonicwall.  Have the sonicwall be the gateway for the network hosts.  The sonicwall would then route traffic accordingly.  If the later suggestion, then I'd go with a TZ210 or gerater.  You'll want something that will be fast enough to route all that traffic quickly.I don't see that you need two WAN interfaces.  You really only need a firewall for the cable connection and a router to route traffic between the two.  Since the T1 router is considered ON the network as it will be the demarc for the traffic on the other side of the VPN, you don't need to firewall that appliance.  Am I assessing this correctly?
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Gianpiero RossiSystem AdministratorCommented:
look at that
www.peplink.com
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crouthamelaCommented:
What firewall do they currently use? What equipment is being supplied as part of the T1 and secure tunnel?
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rfc1180Commented:
You can always get a Cisco 2800 with a T1 WIC, use a combination of IP SLA and PBR to failover/load balance traffic.

http://www.cisco.com/en/US/tech/tk648/tk361/technologies_configuration_example09186a00808d2b72.shtml

Billy
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jfeemsterAuthor Commented:
Will check out peplink.  

They are just using the Firewall built into the Comcast modem right now.  Waiting to hear back from Time Warner on the T1 router being installed.  My understanding is that the T1 router will handle the secure connection to the second office for the TW Converged product.  
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crouthamelaCommented:
For a similar cost to the Peplink you could get a SonicWall TZ100 which can do dual-WAN.

http://www.sonicwall.com/us/products/TZ_100.html
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jfeemsterAuthor Commented:
I got a little more information from Time Warner.  Their converged router, or what they are calling a Managed IAD (integrated access device) is an Adtran 924e.  Its going to provide an Ethernet handoff which will go into whatever router we purchase.  So digitap, I think you're right, I probably don't need dual wan, but I need to be able to route the traffic properly.  I'll check out the SonicWall product.

Thanks.
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digitapCommented:
then that's correct....sonicwall x3 > Adtran > remote site.  You'd create a separate IP network between that the LAN of the adtran sits on.  So, if the LAN interface of the sonicwall is 192.168.1.0/24 and the remote site is 192.168.2.0/24, you could make the X3 interface of the sonicall and LAN of the Adtran 10.10.10.0/24.  X3 would be 10.10.10.1 and the LAN of the Adtran could be 10.10.10.2.  Set a route on the sonicwall that access to 192.168.2.0/24 would use 10.10.10.2 as the gateway.  What does the remote site look like?  Will you purchase a sonicwall for the other end as well?
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jfeemsterAuthor Commented:
Thanks digitap, that makes sense.  The remote site will also be getting a TW T1, but it will be used for voice, data, and secure tunnel.  They have a Netgear FV318, so I'll probably keep using that for now.  
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digitapCommented:
cool...you don't have a firewall in place where you want to install the sonicwall?  sorry if you've indicated that already...
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jfeemsterAuthor Commented:
That's correct, just using the Comcast modem firewall currently.  
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digitapCommented:
ok...i see why you'd want to get a firewall.  obviously, you'd move the public ip to the wan of the sonicwall and configure the comcast in transparent bridge mode.  also, i wrote an article on configuring the mtu of the sonicwall wan interface.  i'll pass that along later.  ok...i think i'm done for the evening.  happy sonicwall hunting!
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jfeemsterAuthor Commented:
Thanks digitap for all your help, greatly appreciated.
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digitapCommented:
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jfeemsterAuthor Commented:
Thanks for all the great responses.  Greatly appreciated.
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digitapCommented:
you're welcome...thanks for the points!
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