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Two Cisco Routers are connected via a serial connection. One is configured with PPP the other is factory default. All IP addresses have been configured and the physical connection between the routers has been verified to be physically in good condition yet there is no communication. What would most likely be the issue?
Different Subnets Configured
Encapsulation Mismatch
Interfaces are Administratively down
Authentication Issues
Cisco by default utilizes HDLC encapsulation. If one of the routers was modified to use PPP then the other must also use the same.
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