Task 2 - Configuring and Examining the Router using CLI

Task 2 - Configuring and Examining the Router using CLI

• 
  Set the router’s hostname
  
• 
  View the router’s interfaces
  
• 
  View which cables are connected to the router’s WAN interfaces (the cards that are inserted into the HWIC slots)
  
• 
  View which routing protocols are running on the router
  
• 
  View which IOS version the router is running
  

Step 1

First, configure the hostname of the router.
Connect to NYEDGE1. Configure the hostname by issuing the following commands (press Enter after each command):
Router>
enable
Router#
configure terminal
Router(config)#
hostname NYEDGE1
NYEDGE1(config)#
exit
You will see the following output:
Router>enable
Router#configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
Router(config)#hostname NYEDGE1
NYEDGE1(config)#exit
NYEDGE1#

Step 2

Next, you will take a look at the router’s interfaces, and you will determine whether cables are attached to the serial interfaces. Being able to view which cables are attached to the serial interfaces on the WIC-1T or WIC-2T cards is very handy, as it can be a great way to troubleshoot connectivity issues.
To do this, type the following command:
NYEDGE1#
show ip interface brief
Press Enter.
You will see the following output:
NYEDGE1#show ip interface brief
Interface IP-Address OK? Method Status Protocol
Embedded-Service-Engine0/0 unassigned YES unset administratively down down
GigabitEthernet0/0 unassigned YES unset administratively down down
GigabitEthernet0/1 unassigned YES unset administratively down down
GigabitEthernet0/2 unassigned YES unset administratively down down
Serial0/0/0 unassigned YES unset administratively down down
Serial0/0/1 unassigned YES unset administratively down down
NYEDGE1#
In the output, you can see that NYEDGE1 has two serial interfaces. You can also see this in the figures of the physical devices at the beginning of this exercise. You can also see that all the interfaces are in an administratively down state by default. Switch, in contrast, has all the interfaces as enabled by default.

Step 3

Now determine what type of cable is connected to the serial interfaces. Specifically, you will look at the cable type of the Serial 0/0/0 interface by issuing the following command:
NYEDGE1#
show controllers serial 0/0/0
Press Enter.
You will see the following output:
NYEDGE1#show controllers serial 0/0/0
Interface Serial0/0/0
Hardware is SCC
DTE V.35
Clock Freq detected Rx clk/Tx clk 1932725/1932725 (+-10%)
!<-- Output Omitted -->
NYEDGE1#
Whilst it is not entirely obvious from the lengthy output that results from the command, in the first few lines, you will see DTE V.35 at the beginning of one of the lines. This indicates that a DTE cable is attached to the interface.

Step 4

You will now issue the same commands in NYEDGE2 and NYWAN1 and compare the output.
Connect to NYEDGE2. Quit the initial configuration dialogs on routers by typing no and issue the following commands (press Enter after each command):

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