PLAN OF ACTION

Investigate the contents and organization of the Cisco Systems online documentation. Prepare a written plan of action describing how you will accomplish the following tasks:

 

PART A

Connect a PC, via the serial port, to the console port of a Cisco 2600 Access Server.

 

We will use a console cable shown in Figure 1. that has one of its ends as an adapter to connect to the serial port on the computer we will use to connect.

 

 

                                                            Figure 1

 

The following steps illustrate how we are going to connect our PC, via the serial port, to the console port of a Cisco 2600 Access Server.

 

1)     The first step is to connect the adapter to a Com port on our PC.

2)     The second step is to connect the other end of the cable which looks like an Ethernet connection to the console port of the router.

3)     On a Windows 2000 computer select Start, Programs, Accessories, Communications, and HyperTerminal.

4)     After HyperTerminal opens, we are going to select a name and Icon for our connection. After that we will select the Com port we are using to connect. By looking at the computers case, we will know which Com port we are using.

5)     Next we are going to setup the Com port properties. We are going to use the following terminal settings:

 

·       9600 baud rate

·       No parity

·       8 data bits

·       1 stop bit

·       No flow control

 

 

PART B

Employ the PC, and its HyperTerminal application, to set the 2600’s name and enable secret to specified strings and remove the enable password and console password.

 

1.  The first step is to check if we have access to the router. If we do, we are going to type show version and record the setting of the configuration register; which is usually 0x2102 or 0x102.

2.  If we don't have access to the router (because of a lost login or TACACS password), we can safely consider that our configuration register is set to 0x2102.

3.  The next step is to turn off the router and then turn it back on using the power switch.

4.  We will press Break on the terminal keyboard within 60 seconds of the power-up to put the router into ROMMON.

If the break sequence doesn't work, we are going to use the following possible key combinations for Break Sequence for password recovery.

Standard Break Key Combinations

Software

Platform

Operating System

Try This

HyperTerminal

IBM Compatible

Windows 2000

Ctrl-Break

HyperTerminal (version 595160)

IBM Compatible

Windows 95

Ctrl-F6-Break

Kermit

Sun Workstation

UNIX

Ctrl-\l

Ctrl-\b

Microphone Pro

IBM Compatible

Windows

Ctrl-Break

Minicom

IBM Compatible

Linux

Ctrl-a f

ProComm Plus

IBM Compatible

DOS or Windows

Alt-b

Telix

IBM Compatible

DOS

Ctrl-End

Telnet to Cisco

IBM Compatible

N/A

Ctrl-]

Teraterm

IBM Compatible

Windows

Alt-b

Terminal

IBM Compatible

Windows

Break

Ctrl-Break

Tip

Sun Workstation

UNIX

Ctrl-], then Break or Ctrl-c

~#

VT 100 Emulation

Data General

N/A

F16

Windows NT

IBM Compatible

Windows

Break-F5

Shift-F5

Shift-6 Shift-4 Shift-b (^$B)

Z-TERMINAL

Mac

Apple

Command-b

N/A

Break-Out Box

N/A

Connect pin 2 (X-mit) to +V for half a second

Cisco to aux port

N/A

Control-Shft-6, then b

IBM Compatible

N/A

Ctrl-Break

 

5. Next we will type confreg 0x2142 at the rommon 1> prompt to boot from Flash without loading the configuration.

6. Now we want to reboot the router with ignoring the saved configuration. In order to accomplish this task we will type reset at the rommon 2>promtpt.

7. Type no after each setup question or press Ctrl-C to skip the initial setup procedure.

8. To put the router in enable mode we will type enable at the Router> prompt.

We will be in enable mode and see the Router# prompt.

9. Important: Type configure memory or copy startup-config running-config to copy the nonvolatile RAM (NVRAM) into memory.

Do not type configure terminal.

10. Type write terminal or show running-config.

The show running-config and write terminal commands show the configuration of the router. In this configuration we see under all the interfaces the shutdown command, which means all interfaces are currently shutdown. Also, we can see the passwords (enable password, enable secret, vty, console passwords, and so on) either in encrypted or unencrypted format. The unencrypted passwords can be re-used, the encrypted ones will have to be changed with a new one.

11. We are now going to type configure terminal and make the changes.

The prompt is now hostname(config)#.

12. To change the  enable secret password, we will type enable secret <password>.

13. Next we will issue the no shutdown command on every interface that is used.

By issuing a show ip interface brief command, every interface that we want to use should be "up up".

14. Next we type config-register 0x2102, or the value we recorded in step 2.

15. We then leave the configuration mode by pressing  Ctrl-z or end.

The prompt is now hostname#.

16. Next we type write memory or copy running-config startup-config to commit the changes.