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connecting 2 WAN sites

By gsinclair ·
I have 2 WAN sites connected by 2 routers. Each having 1 serial & 1 ethernet ports. I am changing my WAN provider that connects via the serial interfaces
to one that requires just a ethernet port link at both ends. Can I use the same routers to do this this physical connection? If so how will it work.

Thanks for ur reply.

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by Zen37 In reply to connecting 2 WAN sites

I'm afraid not, you will need new routers with 2 ethernet interfaces.

But, if your routers have modules, you may be only required to purchase 2 ethernet modules, one for each.

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by exNN In reply to connecting 2 WAN sites

it will depend in the brand and model of your routers. If you are able to add a WAN ethernet interface, it will be just a matter of configuring IP and routing for the new interfaces as you have Serials now. Please provide more info about your HW.

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by acattr In reply to connecting 2 WAN sites

its not recommended to use the same interface for both your wan and lan. But if you have a cisco router, what you can do is create subinterfaces in your configuration. This will work.

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by UncleGeorge In reply to connecting 2 WAN sites

Nope, but those serial interfaces can be connected directly via cross-over. If you have a WAN sniffer, tapping into this circuit can be instructive as you configure various WAN protocols and watch the traffic. You could, I suppose, set up a pair of such routers and end up with the two necessary ethernet ports --- but only at one end, the other would need two ether ports as well. Funny lashup, but it would work.

Best, UncleG

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