How to Recover Cisco 2600 Router’s Password

How to Recover Cisco 2600 Router’s Password

1. Interrupt the router booting operation. This is done by pressing (Ctrl+Break) key simultaneously as soon as you turn on the router. This step will get you to the ROM monitor mode (rommon).

You will have the following:

System Bootstrap, Version 11.3(2)XA4, RELEASE SOFTWARE (fc1)

Copyright (c) 1999 by cisco Systems, Inc.

TAC:Home:SW:IOS:Specials for info

PC = 0xfff0a530, Vector = 0×500, SP = 0x680127b0

C2600 platform with 32768 Kbytes of main memory

PC = 0xfff0a530, Vector = 0×500, SP = 0×80004374 monitor:

command “boot” aborted due to user interrupt

rommon 1 >

The (rommon 1 >) prompt is for the ROM monitor mode. If you are having a problem interrupting the boot sequence of the router, you might be interested in this procedure to simulate break key sequence .

2. Now you should change the value of the configuration register in order to make the router neglect the contents of the NVRAM in the next boot up. This is achieved using the following command:

rommon 1 > confreg 0×2142

This command will change the sixth bit (originally the configuration register is 0×2102) to one. By doing so, the router will act as new in the next boot.

3. Perform a restart to the router using the following command:

rommon 1 > reset

4. The router now will restart and ask you if you want to use the setup mode and of course you will say no. Now, in order not to loose the configuration that you already have in the router, you should go to the USER privileged mode and perform:

Router#copy start run

This will get you back your old configuration but with one exception, you already are in the privileged mode without having to know the password..!!!!

Now you put a new password or passwords if you may:

Router(config)#enable secret blahblah

And you can also put new console and telnet passwords if you like.

5. To get things going back to normal, change the value of the configuration register to its original form (0×2102) using the following global configuration command:

Router(config)#config-register 0×2102

6. Now you should save the configuration including the new passwords that you know:

Router#copy run start

7. Now reload and you are good to go:

Router#reload

Make Your Old PC (Windows XP) as a Router

MAKE YOUR OLD PC (WINDOWS XP) AS A ROUTER

Do you aware that enabling IP forwarding using Windows XP Professional will make it as a simple router, so that you can have 2-3 different networks at home and those computers manage to talk to each other from different network. The router is needed to send/receive the traffic from one network to another network or access Internet. The benefit is you don’t have to buy additional router and so can save some money. This approach is not so common practiced in Windows XP, but it works.As an example, let say you have 7 computers and 2 network switches, and need to create 2 networks that can access Internet, so how to do it?? Some more information, one of the computers is equipped with 3 network cards and one of the network cards is connected to cable/DSL modem to access Internet, so this computer will act as a router!

Configure the network cards on the router with following information.

Router (Windows XP Professional)
Network Card A (connect to network A):
IP: 10.10.10.1
Netmask: 255.255.255.0
Gateway (GW): [leave it blank]
Network Card B (connect to network B):
IP: 192.168.20.1
Netmask: 255.255.255.0
Gateway (GW): [leave it blank]
Network Card C (connect to Internet via cable/dsl connection)
This information will be based on the Internet connection service which you have subscribed. 
IP: 192.168.1.1
Netmask: 255.255.255.0
Gateway (GW): 192.168.1.1

Configure all the computers in network A with following information.
Network A 
IP: 10.10.10.2-254
Netmask: 255.255.255.0
Gateway (GW): 10.10.10.1

Configure all the computers in network B with following information.
Network B 
IP: 192.168.20.2-254
Netmask: 255.255.255.0
Gateway: 192.168.20.1
Ok.. Now it’s the time to configure IP forwarding on that router… 
1) Go to Start and click Run…, then type in regedit to run registry editor.




Note: Please note that only System Administrator can run registry editor. 

2) Registry editor window will appear. Browse for the following registry key at the left hand side window: 
HKEY_LOCAL_MACHINESYSTEMCurrentControlSetServicesTcpipParameters
Right click IPEnableRouter registry object, and click Modify. 
Note: Be extra careful when you deal with registry editor, wrong editing will crash you Windows OS.



3) The IPEnableRouter window will appear. Type 1 as Value data and click OK.



4) Close the regisrty editor and reboot the computer. After rebooting, all the computers should be able to access Internet and also share the file/printer between network A and B.

Note: When I did the test, IP forwarding will only work after rebooting the computer. So don’t forget to do it.

Note: If you feel the above process is too troublesome, advise you to get a wireless router or wired router and set up a simple network. It's much easier!!

Samsung Galaxy Y S5360

GENERAL	2G Network	GSM 850 / 900 / 1800 / 1900
	3G Network	HSDPA 900 / 2100
	Announced	2011, August
	Status	Available. Released 2011, October

BODY	Dimensions	104 x 58 x 11.5 mm
	Weight	97.5 g

DISPLAY	Type	TFT capacitive touchscreen, 256K colors
	Size	240 x 320 pixels, 3.0 inches (~133 ppi pixel density)
	Multitouch	Yes
		- TouchWiz UI - Touch sensitive controls

SOUND	Alert types	Vibration, MP3 ringtones
	Loudspeaker	Yes
	3.5mm jack	Yes

MEMORY	Card slot	microSD, up to 32GB, buy memory
	Internal	180 MB, 290 MB user available RAM

DATA	GPRS	Yes
	EDGE	Yes
	Speed	HSDPA, 7.2 Mbps
	WLAN	Wi-Fi 802.11 b/g/n, Hotspot functionality
	Bluetooth	Yes, v3.0 with A2DP, HS
	USB	Yes, microUSB v2.0

CAMERA	Primary	2 MP, 1600x1200 pixels
	Features	Geo-tagging
	Video	Yes, QVGA@15fps
	Secondary	No

FEATURES	OS	Android OS, v2.3.5 (Gingerbread)
	CPU	830 MHz ARMv6
	Sensors	Accelerometer, proximity, compass
	Messaging	SMS(threaded view), MMS, Email, Push Email, IM
	Browser	WAP 2.0/xHTML, HTML
	Radio	Stereo FM radio with RDS
	GPS	Yes, with A-GPS support
	Java	Yes, MIDP 2.1
	Colors	Metallic gray, white / changeable back covers in pearly white, dark black, fruity orange, bubblegum pink and silver platter
		- SNS integration - MP4/WMV/H.264 player - MP3/WAV/eAAC+ player - Organizer - Image/video editor - Google Search, Maps, Gmail, YouTube, Calendar, Google Talk, Picasa integration - Quickoffice document viewer - Voice memo/commands - Predictive text input (Swype)

BATTERY		Standard battery, Li-Ion 1200 mAh
	Stand-by	Up to 850 h (2G) / Up to 540 h (3G)
	Talk time	Up to 17 h (2G) / Up to 6 h 20 min (3G)

MISC	Price group