Computer hardware and software
How do you get a serial interface and line protocol to be up on a cisco router?
Question : How do you get a serial interface and line protocol to be up on a cisco router?
I have two cisco routers connected with serial cables and they are being configured with a console cable. I set the ip address of both routers 192.168.1.1 255.255.255.0 192.168.2.1 255.255.255.0 and then run a no shut. I exit to exec mode and run a show interface and all I get is Serial is up, line protocol is down. How do I get the line protocol to also be up?
cisco cables
Best answer:
Answer by tast_the_wine
Your IP address are in a different address range. The address you need are:
192.168.1.1 255.255.255.0 and on the other is, 192.168.1.2 255.255.255.0
That makes 256 – 2 = 254 hosts in this range.
Remember a class A is net.host.host.host
class B is net.net.host.host
class C is net.net.net.host
Make sure that one side of the cable is DTE while the other side is DCE.
Add the following command to the serial interface of both routers: ‘encapsulation ppp’
Next, configure the clock speed on the router connected to the DCE end of the cable. ‘clock rate 64000′ Note that the speed can be adjusted…