Pio2pio at 08:16, 1 December 2014

2014-12-01T08:16:42Z

← Older revision		Revision as of 10:16, 1 December 2014
Line 12:		Line 12:
	# Type <tt>end</tt> and <tt>write memory</tt> or <tt>copy running-config startup-config</tt> to save changes		# Type <tt>end</tt> and <tt>write memory</tt> or <tt>copy running-config startup-config</tt> to save changes
	# Type <tt>reload</tt>		# Type <tt>reload</tt>

			= Configuration register =
			The configuration register tells the router how to boot. There are many possible settings for the configuration register. The most common ones are:

			*0x2102 - Factory default setting for Cisco routers (load the IOS image from flash and load the startup config file from NVRAM)
			*0x2142 - Router ignores the contents of Non-Volatile RAM (NVRAM)
			*0x2120 - Router boots into ROMmon mode

Pio2pio: Created page with "= Cisco 1841 = This is compressed process of [http://www.cisco.com/c/en/us/support/docs/routers/1700-series-modular-access-routers/22187-pswdrec-1700.html Password Recovery Pr..."

2014-09-06T08:19:14Z

Created page with "= Cisco 1841 = This is compressed process of [http://www.cisco.com/c/en/us/support/docs/routers/1700-series-modular-access-routers/22187-pswdrec-1700.html Password Recovery Pr..."

New page

= Cisco 1841 =
This is compressed process of [http://www.cisco.com/c/en/us/support/docs/routers/1700-series-modular-access-routers/22187-pswdrec-1700.html Password Recovery Procedure for the Cisco 1700 and 1800 Series Routers] for Cisco 1841 router.

# Console to the router with Tetra Term and send Break (alt+b) at POST. Literally power off/on and send break straight after 2 seconds or when you see the first lines of booting messages.<pre>rommon 1 > confreg 0x2142 
You must reset or power cycle for new config to take effect 
rommon 2 > reset</pre>
# Answer '''No''' or press ctrl+c to skip auto configuration
# Type <tt>enable></tt>
# Type <tt>configure memory</tt> or <tt>copy startup-config running-config</tt> in order to copy the nonvolatile RAM (NVRAM) into memory.
# Type <tt>configure terminal</tt>
# Type enable secret <password> in order to change the enable secret password
# Issue the <tt>no shutdown</tt> command on every interface that you use.
# Type <tt>config-register <configuration_register_setting></tt>. Where configuration_register_setting is either the value you recorded or '''0x2102'''<pre>hostname(config)#config-register 0x2102</pre>
# Type <tt>end</tt> and <tt>write memory</tt> or <tt>copy running-config startup-config</tt> to save changes
# Type <tt>reload</tt>

Cisco password recovery - Revision history

Pio2pio at 08:16, 1 December 2014

Pio2pio: Created page with "= Cisco 1841 = This is compressed process of [http://www.cisco.com/c/en/us/support/docs/routers/1700-series-modular-access-routers/22187-pswdrec-1700.html Password Recovery Pr..."