Common Cisco IOS Issues - Revision history

Vlatona at 19:20, 13 November 2018

2018-11-13T19:20:50Z

← Older revision		Revision as of 19:20, 13 November 2018
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	</pre>		</pre>
	== Cisco Switch IOS Images ==		== Cisco Switch IOS Images ==
			<pre>
	c1841-adventerprisek9-mz.151-4.M12a.bin		c1841-adventerprisek9-mz.151-4.M12a.bin
	c1841-advsecurityk9-mz.151-3.T4.bin		c1841-advsecurityk9-mz.151-3.T4.bin
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	c3560-ipbasek9-mz.122-55.SE4.bin		c3560-ipbasek9-mz.122-55.SE4.bin
	cat4500-entservicesk9-mz.150-2.SG8.bin		cat4500-entservicesk9-mz.150-2.SG8.bin
			</pre>

Vlatona at 19:20, 13 November 2018

2018-11-13T19:20:15Z

← Older revision		Revision as of 19:20, 13 November 2018
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	Switch#show boot (Use this command to ensure the new image is the boot image.)		Switch#show boot (Use this command to ensure the new image is the boot image.)
	</pre>		</pre>
			== Cisco Switch IOS Images ==
			c1841-adventerprisek9-mz.151-4.M12a.bin
			c1841-advsecurityk9-mz.151-3.T4.bin
			c1841-adventerprisek9-mz.151-4.M7.bin
			c1900-universalk9-mz.SPA.152-4.M6a.bin
			c2950-i6k2l2q4-mz.121-22.EA14.bin
			c2960-lanbasek9-mz.122-55.SE9.bin
			c3500xl-c3h2s-mz.120-5.WC17.bin
			c3750-ipbasek9-mz.122-25.SEE3.bin
			c3750-ipbase-mz.122-25.SED.bin
			c3825-adventerprisek9-mz.124-24.T7.bin
			c3825-adventerprisek9-mz.151-4.M10.bin
			c3825-spservicesk9-mz.124-15.T14.bin
			c3560-ipbasek9-mz.122-55.SE4.bin
			cat4500-entservicesk9-mz.150-2.SG8.bin

Vlatona at 19:11, 13 November 2018

2018-11-13T19:11:59Z

@@ Line 39: / Line 39: @@
 Switch# erase startup-config
 Switch# reload
 </pre>

Vlatona at 19:23, 8 November 2018

2018-11-08T19:23:45Z

← Older revision		Revision as of 19:23, 8 November 2018
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	1. Turn the power switch on the router to the off position and unplug the power cable from the router.		1. Turn the power switch on the router to the off position and unplug the power cable from the router.
	2. Please ensure that a computer is plugged into the console port and that the computer has a terminal emulator opened. (TeraTerm or PuTTY)		2. Please ensure that a computer is plugged into the console port and that the computer has a terminal emulator opened. (TeraTerm or PuTTY)
	3. Plug in the power cable to the router and quickly press [[Break]] (PuTTY) or [[Alt+b]] (TeraTerm) repeatedly until the rommon 1> prompt appears.		3. Plug in the power cable to the router and quickly press "Break" (PuTTY) or "Alt+b" (TeraTerm) repeatedly until the rommon 1> prompt appears.
	4. When the rommon 1> script appears type and enter the following command: confreg 0x2142		4. When the rommon 1> script appears type and enter the following command: confreg 0x2142
	5. After entering the previous command, enter the reset command to reload the router while ignoring the startup-config.		5. After entering the previous command, enter the reset command to reload the router while ignoring the startup-config.
	6. After entering the new config, delete the startup-config by typing: delete startup-config		6. After entering the new config, delete the startup-config by typing: delete startup-config
	7. After deleting the startup-config, reload the router using the ~~'''~~reload~~'''~~ command.		7. After deleting the startup-config, reload the router using the "reload" command.
	</pre>		</pre>
	== Forgotten Password Deletion - Switches ==		== Forgotten Password Deletion - Switches ==
	The procedure for deletion of line-level passwords outside of the running-config is done differently on switches as compared to routers. Switches require entry through Password Recovery Mode in order to delete passwords as well as corrupted IOS images.		The procedure for deletion of line-level passwords outside of the running-config is done differently on switches as compared to routers. Switches require entry through Password Recovery Mode in order to delete passwords as well as corrupted IOS images.
	<pre>		<pre>
			1. Open a terminal emulator and ensure your computer is connected to the console port. (Make sure no power is supplied to the switch)
			2. Plug the power cable into the switch; meanwhile, press and hold the mode button until the terminal displays the switch: config text.
			3. Use the following commands to reset the running-config with a password:
			switch: flash_init
			switch: dir flash:
			switch: delete flash:[config.text]
			4. Answer with "y" to delete the file.
			5. Use the reset command to reboot the switch:
			switch: reset
			6. Answer with "y" again to reset the switch.
			7. When the switch boots into the normal startup-config, erase the startup-config and reload the switch again to be safe.
			Switch# erase startup-config
			Switch# reload
	</pre>		</pre>

Vlatona at 19:05, 8 November 2018

2018-11-08T19:05:17Z

← Older revision		Revision as of 19:05, 8 November 2018
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	== Forgotten Password Deletion - Switches ==		== Forgotten Password Deletion - Switches ==
	The procedure for deletion of line-level passwords outside of the running-config is done differently on switches as compared to routers. Switches require entry through Password Recovery Mode in order to delete passwords as well as corrupted IOS images.		The procedure for deletion of line-level passwords outside of the running-config is done differently on switches as compared to routers. Switches require entry through Password Recovery Mode in order to delete passwords as well as corrupted IOS images.
			<pre>

			</pre>

Vlatona at 19:03, 8 November 2018

2018-11-08T19:03:26Z

← Older revision		Revision as of 19:03, 8 November 2018
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	1. Turn the power switch on the router to the off position and unplug the power cable from the router.		1. Turn the power switch on the router to the off position and unplug the power cable from the router.
	2. Please ensure that a computer is plugged into the console port and that the computer has a terminal emulator opened. (TeraTerm or PuTTY)		2. Please ensure that a computer is plugged into the console port and that the computer has a terminal emulator opened. (TeraTerm or PuTTY)
	3. Plug in the power cable to the router and quickly press ~~'''~~Break~~'''~~ (PuTTY) or ~~'''~~Alt+b~~'''~~ (TeraTerm) repeatedly until the rommon 1> prompt appears.		3. Plug in the power cable to the router and quickly press [[Break]] (PuTTY) or [[Alt+b]] (TeraTerm) repeatedly until the rommon 1> prompt appears.
	4. When the rommon 1> script appears type and enter the following command: confreg 0x2142		4. When the rommon 1> script appears type and enter the following command: confreg 0x2142
	5. After entering the previous command, enter the reset command to reload the router while ignoring the startup-config.		5. After entering the previous command, enter the reset command to reload the router while ignoring the startup-config.

Vlatona at 19:01, 8 November 2018

2018-11-08T19:01:29Z

← Older revision		Revision as of 19:01, 8 November 2018
Line 17:		Line 17:
	1. Turn the power switch on the router to the off position and unplug the power cable from the router.		1. Turn the power switch on the router to the off position and unplug the power cable from the router.
	2. Please ensure that a computer is plugged into the console port and that the computer has a terminal emulator opened. (TeraTerm or PuTTY)		2. Please ensure that a computer is plugged into the console port and that the computer has a terminal emulator opened. (TeraTerm or PuTTY)
	3. Plug in the power cable to the router and quickly press '''Break'''(PuTTY) or '''Alt+b'''(TeraTerm) repeatedly until the rommon 1> prompt appears.		3. Plug in the power cable to the router and quickly press '''Break''' (PuTTY) or '''Alt+b''' (TeraTerm) repeatedly until the rommon 1> prompt appears.
	4. When the rommon 1> script appears type and enter the following command: confreg 0x2142		4. When the rommon 1> script appears type and enter the following command: confreg 0x2142
	5. After entering the previous command, enter the reset command to reload the router while ignoring the startup-config.		5. After entering the previous command, enter the reset command to reload the router while ignoring the startup-config.

Vlatona at 19:01, 8 November 2018

2018-11-08T19:01:01Z

← Older revision		Revision as of 19:01, 8 November 2018
Line 17:		Line 17:
	1. Turn the power switch on the router to the off position and unplug the power cable from the router.		1. Turn the power switch on the router to the off position and unplug the power cable from the router.
	2. Please ensure that a computer is plugged into the console port and that the computer has a terminal emulator opened. (TeraTerm or PuTTY)		2. Please ensure that a computer is plugged into the console port and that the computer has a terminal emulator opened. (TeraTerm or PuTTY)
	3. Plug in the power cable to the router and quickly press '''Break'''(PuTTY) or Alt+b(TeraTerm) repeatedly until the rommon 1> prompt appears.		3. Plug in the power cable to the router and quickly press '''Break'''(PuTTY) or '''Alt+b'''(TeraTerm) repeatedly until the rommon 1> prompt appears.
	4. When the rommon 1> script appears type and enter the following command: confreg 0x2142		4. When the rommon 1> script appears type and enter the following command: confreg 0x2142
	5. After entering the previous command, enter the reset command to reload the router while ignoring the startup-config.		5. After entering the previous command, enter the reset command to reload the router while ignoring the startup-config.

Vlatona at 18:59, 8 November 2018

2018-11-08T18:59:50Z

← Older revision		Revision as of 18:59, 8 November 2018
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	<pre>		<pre>
	delete /force /recursive [filename]		delete /force /recursive [filename]
			</pre>
	== Forgotten Password Deletion - Routers ==		== Forgotten Password Deletion - Routers ==
	When working with labs on Routers, sometimes students enter their console passwords incorrectly or they simply forget. The following documentation will describe the procedure to erase any passwords needed to enter the networking device.		When working with labs on Routers, sometimes students enter their console passwords incorrectly or they simply forget. The following documentation will describe the procedure to erase any passwords needed to enter the networking device.

Vlatona at 18:59, 8 November 2018

2018-11-08T18:59:16Z

@@ Line 13: / Line 13: @@
 == Forgotten Password Deletion - Routers ==
 When working with labs on Routers, sometimes students enter their console passwords incorrectly or they simply forget. The following documentation will describe the procedure to erase any passwords needed to enter the networking device.
 <pre>