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back-to-back

I have attached a diagram for the connection that I've made for my four routers. A and B were connected using serial ports via frame switch using smart cables. Now, I am short of serial cables for my third router C. I connect router C using cross RJ45 cable, is it possible? what will be my configuration? For A and B i used ospf as my routing protocol, which is not a problem. Can anyone suggest any alternative connection. thanks

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Re: back-to-back

use an RJ-48c connector

RJ48 has a keyed connector and a notched jack.

RJ45 does not have a key or a notch.

Both have 8 pins.

Although an RJ45 connector fits an RJ48 jack, the key on an RJ48 connector does not allow it to plug into an RJ45 jack.

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