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2port ethernet TransPort21 as cable/dsl failover

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Is it possible to use a WR21 with 2 ethernet port to provide failover from a cable/dsl Internet connection? I want the cable/dsl to be the primary Internet connection and the cellular to be the failover. I only have a few embedded devices on the LAN side.
I assume the WAN(cable/dsl) would be LAN-0 and the local network would be LAN-1?

Is there any app note or documentation that would help with setup?

asked Dec 11, 2014 in Digi TransPort Cellular by skeller New to the Community (5 points)

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1 Answer

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Here is the exact app note you are thinking of:

It is fairly "easy" to setup and this scenario is deployed quite frequently.
answered Dec 12, 2014 by NicholasWilson Veteran of the Digi Community (1,003 points)
I'm having the same problem too. dsl modem and router could not communicate other. computer connected to the router IP blo─čund are different and do not have access to the internet. please help