The document provides detailed instructions on console connectivity for a Cisco router, including steps to connect a rollover cable and configure emulation software for both Windows and Linux. It includes commands to access and configure the router in ROMMON mode and offers information about the router's software version and system configuration. Additionally, it describes the system's interfaces and certain configurations, including IP addresses and passwords.

1. 1

2. Console Connectivity
RJ-45
Connector
Console Port
Rollover
Cable
RJ-45 to DB-9
Converter
Computer
2

3. Console Connectivity
•
Connect a rollover cable to the router console port
(RJ-45 connector).
•
Connect the other end of the rollover cable to the RJ45 to DB-9 converter
•
Attach the female DB-9 converter to a PC Serial Port.
•
Open emulation software on the PC.
3

4. Emulation Software
WINDOWS
•
Start  Programs  Accessories  Communications
 HyperTerminal  HyperTerminal.
•
Give the Connection Name & Select Any Icon
•
Select Serial (Com) Port where Router is Connected.
•
In Port Settings  Click on Restore Defaults
•
Switch on the Router and press Ctrl+Break within 60
seconds to go into Router ROMMON mode.
LINUX
•
# minicom –s
•
Switch on the Router and press Ctrl+A, Z and F within
60 seconds to go into Router ROMMON mode.
4

5. Console Connectivity
Con 0
E0
LAN - 192.168.1.0/24
5

6. 6

7. 7

8. 8

9. 9

10. 10

11. 11

12. 12

13. abc
13

14. 14

15. 15

16. 16

17. 17

18. 18

19. System Bootstrap, Version 11.0(10c), SOFTWARE
Copyright (c) 1986-1996 by cisco Systems
2500 processor with 2048 Kbytes of main memory
> o/r 0x2142
::ROM Monitor Mode ::
ROM Monitor Mode
>i
If it is Fixed Router
If is Fixed Router
00:01:48: %SYS-5-RELOAD:itReload requested
> o/r 0x2142
> o/r 0x2142
> ii
>
If it is Modular Router
If it is Modular Router
ROMMON> confreg 0x2142
ROMMON> confreg 0x2142
ROMMON> reset
ROMMON> reset
19

20. System Bootstrap, Version 11.0(10c), SOFTWARE
Copyright (c) 1986-1996 by cisco Systems
2500 processor with 2048 Kbytes of main memory
Notice: NVRAM invalid, possibly due to write erase.
F3: 5575260+78596+410108 at 0x3000060
Restricted Rights Legend
Use, duplication, or disclosure by the Government is
subject to restrictions as set forth in subparagraph
(c) of the Commercial Computer Software - Restricted
Rights clause at FAR sec. 52.227-19 and subparagraph
(c) (1) (ii) of the Rights in Technical Data and Computer
Software clause at DFARS sec. 252.227-7013.
Cisco Systems, Inc.
170 West Tasman Drive
San Jose, California 95134-1706
20

21. Cisco Internetwork Operating System Software
IOS(tm) 2500 Software(C2500-P-L),Version 12.1(24),RELEASE SOFTWARE(fc1
Copyright (c) 1986-2002 by cisco Systems, Inc.
Compiled Mon 30-Sep-02 20:43 by srani
Image text-base: 0x0302EA54, data-base: 0x00001000
Cisco 2500(68030)processor(revision N) with 2048K/2048K bytes of memory.
Processor board ID 11169613, with hardware revision 00000001
X.25 software, Version 3.0.0.
Basic Rate ISDN software, Version 1.1.
1 Ethernet/IEEE 802.3 interface(s)
2 Serial network interface(s)
1 ISDN Basic Rate interface(s)
32K bytes of non-volatile configuration memory.
8192K bytes of processor board System flash (Read ONLY)
--- System Configuration Dialog --Would you like to enter the initial configuration dialog? [yes/no]: n
21

22. Press RETURN to get started!
00:00:20: %LINK-3-UPDOWN: Interface Ethernet0, changed state to up
00:00:20: %LINK-3-UPDOWN: Interface Serial0, changed state to down
00:00:20: %LINK-3-UPDOWN: Interface Serial1, changed state to down
00:00:21: %LINEPROTO-5-UPDOWN: Line protocol on Interface Ethernet0,
changed state to up
00:00:21: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0,
changed state to down
00:00:21: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial1,
changed state to down
00:12:43: %LINK-5-CHANGED: Interface Ethernet0, changed state to
administratively down
00:12:43: %LINK-5-CHANGED: Interface Serial0, changed state to
administratively down
00:12:43: %LINK-5-CHANGED: Interface Serial1, changed state to
administratively down
00:12:44: %LINEPROTO-5-UPDOWN: Line protocol on Interface Ethernet0,
changed state to down
00:12:46: %SYS-5-RESTART: System restarted
22

23. Cisco Internetwork Operating System Software
IOS(tm) 2500 Software(C2500-P-L),Version 12.0(24),RELEASE SOFTWARE(fc1
Copyright (c) 1986-2002 by cisco Systems, Inc.
Compiled Mon 30-Sep-02 20:43 by srani
Router> enable
Router# show running-config
Building configuration .....
Current configuration:
version 12.1
no service password-encryption
no service udp-small-servers
no service tcp-small-servers
!
hostname Router
!
no ip routing
!
interface Ethernet0
no ip address
--More--
23

24. shutdown
!
interface Serial0
no ip address
shutdown
!
interface Serial1
no ip address
shutdown
!
no ip classless
!
line vty 0
line con 0
line aux 0
!
end
Router#
Router#
Router#
24

25. Hyderabad# show startup-config
Building configuration .....
Current configuration:
!
version 12.1
no service password-encryption
no service udp-small-servers
no service tcp-small-servers
!
hostname Hyderabad
!
enable secret 5 $1$60nw$8XzAJ445GBzx1mgYJTUjo1
enable password cisco
!
interface Ethernet0
ip address 192.168.1.150 255.255.255.0
!
interface Serial0
no ip address
shutdown
--More--
25

26. interface Serial1
no ip address
shutdown
!
no ip classless
!
line con 0
login
password ccna
line aux 0
login
password cisco
line vty 0 4
login
password zoom
!
end
Hyderabad#
Hyderabad#
Hyderabad#
26

27. Router# show version
Cisco Internetwork Operating System Software
IOS (tm) 2500 Software (C2500-JS-L),Version 12.1(17),RELEASE SOFTWARE
Copyright (c) 1986-1999 by cisco Systems, Inc.
Compiled Mon 04-Jan-99 17:27 by ashah
Image text-base: 0x03040148, data-base: 0x00001000
ROM: System Bootstrap, Version 11.0(10c), SOFTWARE
BOOTFLASH: 3000 Bootstrap Software (IGS-BOOT-R), Version 11.0(10c),
RELEASE SOFTWARE (fc1)
Hyderabad uptime is 14 minutes
System restarted by power-on
System image file is "flash:/c2500-ipx-ip.bin", booted via flash
Cisco 2500(68030)processor(revision N) with 2048K/2048K bytes of memo
Processor board ID 11169613, with hardware revision 00000001
X.25 software, Version 3.0.0.
Basic Rate ISDN software, Version 1.1.
1 Ethernet/IEEE 802.3 interface(s)
2 Serial network interface(s)
1 ISDN Basic Rate interface(s)
--More--
27

28. ROM: System Bootstrap, Version 11.0(10c), SOFTWARE
BOOTFLASH: 3000 Bootstrap Software (IGS-BOOT-R), Version 11.0(10c),
RELEASE SOFTWARE (fc1)
Hyderabad uptime is 1 hour, 28 minutes
System restarted by power-on
System image file is "flash:/c2500-ipx-ip.bin", booted via flash
Cisco 2500(68030)processor(revision N) with 2048K/2048K bytes of memo
Processor board ID 11169613, with hardware revision 00000001
X.25 software, Version 3.0.0.
Basic Rate ISDN software, Version 1.1.
1 Ethernet/IEEE 802.3 interface(s)
2 Serial network interface(s)
1 ISDN Basic Rate interface(s)
32K bytes of non-volatile configuration memory.
8192K bytes of processor board System flash (Read ONLY)
Configuration register is 0x2142
Router#
28

29. Router# copy startup-config running-config
Building configuration.....
[OK]
Hyderabad# configure terminal
Enter configuration commands, one per line.
Hyderabad(config)# interface Ethernet 0
Hyderabad(config-if)# no shut
Hyderabad(config-if)# exit
Hyderabad(config)# enable secret zoom
Hyderabad(config)# config-register 0x2102
Hyderabad(config)# ^Z
Hyderabad# write
Building configuration.....
[OK]
Hyderabad#
End with CNTL/Z.
29

30. Hyderabad# show version
Cisco Internetwork Operating System Software
IOS (tm) 2500 Software (C2500-JS-L),Version 12.1(17),RELEASE SOFTWARE
Copyright (c) 1986-1999 by cisco Systems, Inc.
Compiled Mon 04-Jan-99 17:27 by ashah
Image text-base: 0x03040148, data-base: 0x00001000
ROM: System Bootstrap, Version 11.0(10c), SOFTWARE
BOOTFLASH: 3000 Bootstrap Software (IGS-BOOT-R), Version 11.0(10c),
RELEASE SOFTWARE (fc1)
Hyderabad uptime is 14 minutes
System restarted by power-on
System image file is "flash:/c2500-ipx-ip.bin", booted via flash
Cisco 2500(68030)processor(revision N) with 2048K/2048K bytes of memo
Processor board ID 11169613, with hardware revision 00000001
X.25 software, Version 3.0.0.
Basic Rate ISDN software, Version 1.1.
1 Ethernet/IEEE 802.3 interface(s)
2 Serial network interface(s)
1 ISDN Basic Rate interface(s)
--More--
30

31. ROM: System Bootstrap, Version 11.0(10c), SOFTWARE
BOOTFLASH: 3000 Bootstrap Software (IGS-BOOT-R), Version 11.0(10c),
RELEASE SOFTWARE (fc1)
Hyderabad uptime is 1 hour, 28 minutes
System restarted by power-on
System image file is "flash:/c2500-ipx-ip.bin", booted via flash
Cisco 2500(68030)processor(revision N) with 2048K/2048K bytes of memo
Processor board ID 11169613, with hardware revision 00000001
X.25 software, Version 3.0.0.
Basic Rate ISDN software, Version 1.1.
1 Ethernet/IEEE 802.3 interface(s)
2 Serial network interface(s)
1 ISDN Basic Rate interface(s)
32K bytes of non-volatile configuration memory.
8192K bytes of processor board System flash (Read ONLY)
Configuration register is 0x2142 (will be 0x2102 at next reload)
Hyderabad# reload
31