How to recover the password for cisco 2900 integrated services router
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1. The document provides steps to recover the password for a Cisco 2900 Integrated Services Router when password recovery is disabled, which involves changing the configuration register and rebooting the router. 2. Upon rebooting, the configuration must be backed up and interfaces configured before resetting the configuration register to the original value. 3. Additional information is provided on password recovery and an overview of the Cisco router and licensing.
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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
Cisco IOS Software, C2900 Software (C2900-UNIVERSALK9-M), Version 15.0(1)M1,
RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2009 by Cisco Systems, Inc.
Compiled Wed 02-Dec-09 15:23 by prod_rel_team
Cisco CISCO2921/K9 (revision 1.0) with 475136K/49152K bytes of memory.
Processor board ID FHH1230P04Y
1 DSL controller
3 Gigabit Ethernet interfaces
9 terminal lines
1 Virtual Private Network (VPN) Module
1 Cable Modem interface
1 cisco Integrated Service Engine-2(s)
Cisco Foundation 2.2.1 in slot 1
DRAM configuration is 64 bits wide with parity enabled.
255K bytes of non-volatile configuration memory.
248472K bytes of ATA System CompactFlash 0 (Read/Write)
62720K bytes of ATA CompactFlash 1 (Read/Write)
--- System Configuration Dialog ---
3](https://image.slidesharecdn.com/howtorecoverthepasswordforcisco2900integratedservicesrouter-140707052843-phpapp02/85/How-to-recover-the-password-for-cisco-2900-integrated-services-router-3-320.jpg)
![Would you like to enter the initial configuration dialog? [yes/no]: n
Press RETURN to get started!
00:00:19: %LINK-3-UPDOWN: Interface BRI0/0, changed state to up
00:00:19: %LINK-3-UPDOWN: Interface Ethernet0/0, changed state to up
00:00:19: %LINK-3-UPDOWN: Interface Ethernet0/1, changed state to up
00:00:19: %LINK-3-UPDOWN: Interface Serial0/0, changed state to down
00:00:19: %LINK-3-UPDOWN: Interface Serial0/1, changed state to down
00:00:20: %LINEPROTO-5-UPDOWN: Line protocol on Interface BRI0/0,
changed state to down
00:00:20: %LINEPROTO-5-UPDOWN: Line protocol on Interface Ethernet0/0,
changed state to up
Router>
00:00:20: %LINEPROTO-5-UPDOWN: Line protocol on Interface Ethernet0/1,
changed state to up
00:00:20: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0,
changed state to down
00:00:20: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/1,
changed state to down
00:00:50: %SYS-5-RESTART: System restarted --
Cisco IOS Software, C2900 Software (C2900-UNIVERSALK9-M), Version 15.0(1)M1,
RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2009 by Cisco Systems, Inc.
Compiled Wed 02-Dec-09 15:23 by prod_rel_team
00:00:50: %LINK-5-CHANGED: Interface BRI0/0,
changed state to administratively down
00:00:52: %LINK-5-CHANGED: Interface Ethernet0/0,
changed state to administratively down
00:00:52: %LINK-5-CHANGED: Interface Serial0/0,
changed state to administratively down
00:00:52: %LINK-5-CHANGED: Interface Ethernet0/1,
changed state to administratively down
00:00:52: %LINK-5-CHANGED: Interface Serial0/1,
changed state to administratively down
00:00:53: %LINEPROTO-5-UPDOWN: Line protocol on Interface Ethernet0/0,
changed state to down
00:00:53: %LINEPROTO-5-UPDOWN: Line protocol on Interface Ethernet0/1,
changed state to down
Router>
Router>enable
Router#copy startup-config running-config
4](https://image.slidesharecdn.com/howtorecoverthepasswordforcisco2900integratedservicesrouter-140707052843-phpapp02/85/How-to-recover-the-password-for-cisco-2900-integrated-services-router-4-320.jpg)
![Destination filename [running-config]?
1324 bytes copied in 2.35 secs (662 bytes/sec)
Router#
00:01:24: %LINEPROTO-5-UPDOWN: Line protocol on Interface BRI0/0:1,
changed state to down
00:01:24: %LINEPROTO-5-UPDOWN: Line protocol on Interface BRI0/0:2,
changed state to down
Router#configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
Router(config)#enable secret < password >
Router(config)#^Z
00:01:54: %SYS-5-CONFIG_I: Configured from console by console
Router#show ip interface brief
Interface IP-Address OK? Method Status Protocol
Ethernet0/0 10.200.40.37 YES TFTP administratively down down
Serial0/0 unassigned YES TFTP administratively down down
BRI0/0 193.251.121.157 YES unset administratively down down
BRI0/0:1 unassigned YES unset administratively down down
BRI0/0:2 unassigned YES unset administratively down down
Ethernet0/1 unassigned YES TFTP administratively down down
Serial0/1 unassigned YES TFTP administratively down down
Loopback0 193.251.121.157 YES TFTP up up
Router#configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
Router(config)#interface Ethernet0/0
Router(config-if)#no shutdown
Router(config-if)#
00:02:14: %LINK-3-UPDOWN: Interface Ethernet0/0, changed state to up
00:02:15: %LINEPROTO-5-UPDOWN: Line protocol on Interface Ethernet0/0,
changed state to up
Router(config-if)#interface BRI0/0
Router(config-if)#no shutdown
Router(config-if)#
00:02:26: %LINK-3-UPDOWN: Interface BRI0/0:1, changed state to down
00:02:26: %LINK-3-UPDOWN: Interface BRI0/0:2, changed state to down
00:02:26: %LINK-3-UPDOWN: Interface BRI0/0, changed state to up
00:02:115964116991: %ISDN-6-LAYER2UP: Layer 2 for Interface BR0/0,
TEI 68 changed to up
Router(config-if)#^Z
Router#
00:02:35: %SYS-5-CONFIG_I: Configured from console by console
Router#copy running-config startup-config
5](https://image.slidesharecdn.com/howtorecoverthepasswordforcisco2900integratedservicesrouter-140707052843-phpapp02/85/How-to-recover-the-password-for-cisco-2900-integrated-services-router-5-320.jpg)
![Destination filename [startup-config]?
Building configuration...
[OK]
Router#show version
Cisco IOS Software, C2900 Software (C2900-UNIVERSALK9-M), Version 15.0(1)M1,
RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2009 by Cisco Systems, Inc.
Compiled Wed 02-Dec-09 15:23 by prod_rel_team
ROM: System Bootstrap, Version 15.0(1r)M1, RELEASE SOFTWARE (fc1)
c2921-CCP-1-xfr uptime is 2 weeks, 22 hours, 15 minutes
System returned to ROM by reload at 06:06:52 PCTime Mon Apr 2 1900
System restarted at 06:08:03 PCTime Mon Apr 2 1900
System image file is "flash:c2900-universalk9-mz.SPA.150-1.M1.bin"
Last reload reason: Reload Command
Cisco CISCO2921/K9 (revision 1.0) with 475136K/49152K bytes of memory.
Processor board ID FHH1230P04Y
1 DSL controller
3 Gigabit Ethernet interfaces
9 terminal lines
1 Virtual Private Network (VPN) Module
1 Cable Modem interface
1 cisco Integrated Service Engine-2(s)
Cisco Foundation 2.2.1 in slot 1
DRAM configuration is 64 bits wide with parity enabled.
255K bytes of non-volatile configuration memory.
248472K bytes of ATA System CompactFlash 0 (Read/Write)
62720K bytes of ATA CompactFlash 1 (Read/Write)
Configuration register is 0x2102
Router#configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
Router(config)#config-register 0x2102
Router(config)#^Z
00:03:20: %SYS-5-CONFIG_I: Configured from console by console
Router#show version
Cisco IOS Software, C2900 Software (C2900-UNIVERSALK9-M), Version 15.0(1)M1,
RELEASE SOFTWARE (fc1)
6](https://image.slidesharecdn.com/howtorecoverthepasswordforcisco2900integratedservicesrouter-140707052843-phpapp02/85/How-to-recover-the-password-for-cisco-2900-integrated-services-router-6-320.jpg)
How to recover the password for cisco 2900 integrated services router
- 1. How to Recover the Password for Cisco 2900 Integrated Services Router This was created with a Cisco 2900 Series ISR. Even if you do not use a Cisco 2900 Series ISR, this output provides an example of what you should experience on your product. Router> enable Password: Password: Password: % Bad secrets Router> show version Cisco IOS Software, C2900 Software (C2900-UNIVERSALK9-M), Version 15.0(1)M1, RELEASE SOFTWARE (fc1) Technical Support: http://www.cisco.com/techsupport Copyright (c) 1986-2009 by Cisco Systems, Inc. Compiled Wed 02-Dec-09 15:23 by prod_rel_team ROM: System Bootstrap, Version 15.0(1r)M1, RELEASE SOFTWARE (fc1) c2921-CCP-1-xfr uptime is 2 weeks, 22 hours, 15 minutes System returned to ROM by reload at 06:06:52 PCTime Mon Apr 2 1900 System restarted at 06:08:03 PCTime Mon Apr 2 1900 System image file is "flash:c2900-universalk9-mz.SPA.150-1.M1.bin" Last reload reason: Reload Command This product contains cryptographic features and is subject to United States and local country laws governing import, export, transfer and use. Delivery of Cisco cryptographic products does not imply third-party authority to import, export, distribute or use encryption. Importers, exporters, distributors and users are responsible for compliance with U.S. and local country laws. By using this product you agree to comply with applicable laws and regulations. If you are unable to comply with U.S. and local laws, return this product immediately. Cisco CISCO2921/K9 (revision 1.0) with 475136K/49152K bytes of memory. Processor board ID FHH1230P04Y 1
- 2. 1 DSL controller 3 Gigabit Ethernet interfaces 9 terminal lines 1 Virtual Private Network (VPN) Module 1 Cable Modem interface 1 cisco Integrated Service Engine-2(s) Cisco Foundation 2.2.1 in slot 1 DRAM configuration is 64 bits wide with parity enabled. 255K bytes of non-volatile configuration memory. 248472K bytes of ATA System CompactFlash 0 (Read/Write) 62720K bytes of ATA CompactFlash 1 (Read/Write) Technology Package License Information for Module:'c2900' ---------------------------------------------------------------- Technology Technology-package Technology-package Current Type Next reboot ----------------------------------------------------------------- ipbase ipbasek9 Permanent ipbasek9 security securityk9 Permanent securityk9 uc uck9 Permanent uck9 data datak9 Permanent datak9 Configuration register is 0x2102 Router> !--- Execute Steps 1 through 4 from Step-by-Step Procedure. ! rommon 1 > confreg 0x2142 You must reset or power cycle for new config to take effect rommon 2 > reset System Bootstrap, Version 15.0(1r)M1, RELEASE SOFTWARE (fc1) Copyright (c) 2009 by cisco Systems, Inc. TAC:Home:SW:IOS:Specials for info C2900 platform with 524288 Kbytes of main memory program load complete, entry point: 0x80008000, size: 0x6fdb4c 2
- 3. Self decompressing the image : ############################### ############################################################## ############################################################## ############################################################## ############################### [OK] 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 Cisco IOS Software, C2900 Software (C2900-UNIVERSALK9-M), Version 15.0(1)M1, RELEASE SOFTWARE (fc1) Technical Support: http://www.cisco.com/techsupport Copyright (c) 1986-2009 by Cisco Systems, Inc. Compiled Wed 02-Dec-09 15:23 by prod_rel_team Cisco CISCO2921/K9 (revision 1.0) with 475136K/49152K bytes of memory. Processor board ID FHH1230P04Y 1 DSL controller 3 Gigabit Ethernet interfaces 9 terminal lines 1 Virtual Private Network (VPN) Module 1 Cable Modem interface 1 cisco Integrated Service Engine-2(s) Cisco Foundation 2.2.1 in slot 1 DRAM configuration is 64 bits wide with parity enabled. 255K bytes of non-volatile configuration memory. 248472K bytes of ATA System CompactFlash 0 (Read/Write) 62720K bytes of ATA CompactFlash 1 (Read/Write) --- System Configuration Dialog --- 3
- 4. Would you like to enter the initial configuration dialog? [yes/no]: n Press RETURN to get started! 00:00:19: %LINK-3-UPDOWN: Interface BRI0/0, changed state to up 00:00:19: %LINK-3-UPDOWN: Interface Ethernet0/0, changed state to up 00:00:19: %LINK-3-UPDOWN: Interface Ethernet0/1, changed state to up 00:00:19: %LINK-3-UPDOWN: Interface Serial0/0, changed state to down 00:00:19: %LINK-3-UPDOWN: Interface Serial0/1, changed state to down 00:00:20: %LINEPROTO-5-UPDOWN: Line protocol on Interface BRI0/0, changed state to down 00:00:20: %LINEPROTO-5-UPDOWN: Line protocol on Interface Ethernet0/0, changed state to up Router> 00:00:20: %LINEPROTO-5-UPDOWN: Line protocol on Interface Ethernet0/1, changed state to up 00:00:20: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0, changed state to down 00:00:20: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/1, changed state to down 00:00:50: %SYS-5-RESTART: System restarted -- Cisco IOS Software, C2900 Software (C2900-UNIVERSALK9-M), Version 15.0(1)M1, RELEASE SOFTWARE (fc1) Technical Support: http://www.cisco.com/techsupport Copyright (c) 1986-2009 by Cisco Systems, Inc. Compiled Wed 02-Dec-09 15:23 by prod_rel_team 00:00:50: %LINK-5-CHANGED: Interface BRI0/0, changed state to administratively down 00:00:52: %LINK-5-CHANGED: Interface Ethernet0/0, changed state to administratively down 00:00:52: %LINK-5-CHANGED: Interface Serial0/0, changed state to administratively down 00:00:52: %LINK-5-CHANGED: Interface Ethernet0/1, changed state to administratively down 00:00:52: %LINK-5-CHANGED: Interface Serial0/1, changed state to administratively down 00:00:53: %LINEPROTO-5-UPDOWN: Line protocol on Interface Ethernet0/0, changed state to down 00:00:53: %LINEPROTO-5-UPDOWN: Line protocol on Interface Ethernet0/1, changed state to down Router> Router>enable Router#copy startup-config running-config 4
- 5. Destination filename [running-config]? 1324 bytes copied in 2.35 secs (662 bytes/sec) Router# 00:01:24: %LINEPROTO-5-UPDOWN: Line protocol on Interface BRI0/0:1, changed state to down 00:01:24: %LINEPROTO-5-UPDOWN: Line protocol on Interface BRI0/0:2, changed state to down Router#configure terminal Enter configuration commands, one per line. End with CNTL/Z. Router(config)#enable secret < password > Router(config)#^Z 00:01:54: %SYS-5-CONFIG_I: Configured from console by console Router#show ip interface brief Interface IP-Address OK? Method Status Protocol Ethernet0/0 10.200.40.37 YES TFTP administratively down down Serial0/0 unassigned YES TFTP administratively down down BRI0/0 193.251.121.157 YES unset administratively down down BRI0/0:1 unassigned YES unset administratively down down BRI0/0:2 unassigned YES unset administratively down down Ethernet0/1 unassigned YES TFTP administratively down down Serial0/1 unassigned YES TFTP administratively down down Loopback0 193.251.121.157 YES TFTP up up Router#configure terminal Enter configuration commands, one per line. End with CNTL/Z. Router(config)#interface Ethernet0/0 Router(config-if)#no shutdown Router(config-if)# 00:02:14: %LINK-3-UPDOWN: Interface Ethernet0/0, changed state to up 00:02:15: %LINEPROTO-5-UPDOWN: Line protocol on Interface Ethernet0/0, changed state to up Router(config-if)#interface BRI0/0 Router(config-if)#no shutdown Router(config-if)# 00:02:26: %LINK-3-UPDOWN: Interface BRI0/0:1, changed state to down 00:02:26: %LINK-3-UPDOWN: Interface BRI0/0:2, changed state to down 00:02:26: %LINK-3-UPDOWN: Interface BRI0/0, changed state to up 00:02:115964116991: %ISDN-6-LAYER2UP: Layer 2 for Interface BR0/0, TEI 68 changed to up Router(config-if)#^Z Router# 00:02:35: %SYS-5-CONFIG_I: Configured from console by console Router#copy running-config startup-config 5
- 6. Destination filename [startup-config]? Building configuration... [OK] Router#show version Cisco IOS Software, C2900 Software (C2900-UNIVERSALK9-M), Version 15.0(1)M1, RELEASE SOFTWARE (fc1) Technical Support: http://www.cisco.com/techsupport Copyright (c) 1986-2009 by Cisco Systems, Inc. Compiled Wed 02-Dec-09 15:23 by prod_rel_team ROM: System Bootstrap, Version 15.0(1r)M1, RELEASE SOFTWARE (fc1) c2921-CCP-1-xfr uptime is 2 weeks, 22 hours, 15 minutes System returned to ROM by reload at 06:06:52 PCTime Mon Apr 2 1900 System restarted at 06:08:03 PCTime Mon Apr 2 1900 System image file is "flash:c2900-universalk9-mz.SPA.150-1.M1.bin" Last reload reason: Reload Command Cisco CISCO2921/K9 (revision 1.0) with 475136K/49152K bytes of memory. Processor board ID FHH1230P04Y 1 DSL controller 3 Gigabit Ethernet interfaces 9 terminal lines 1 Virtual Private Network (VPN) Module 1 Cable Modem interface 1 cisco Integrated Service Engine-2(s) Cisco Foundation 2.2.1 in slot 1 DRAM configuration is 64 bits wide with parity enabled. 255K bytes of non-volatile configuration memory. 248472K bytes of ATA System CompactFlash 0 (Read/Write) 62720K bytes of ATA CompactFlash 1 (Read/Write) Configuration register is 0x2102 Router#configure terminal Enter configuration commands, one per line. End with CNTL/Z. Router(config)#config-register 0x2102 Router(config)#^Z 00:03:20: %SYS-5-CONFIG_I: Configured from console by console Router#show version Cisco IOS Software, C2900 Software (C2900-UNIVERSALK9-M), Version 15.0(1)M1, RELEASE SOFTWARE (fc1) 6
- 7. Technical Support: http://www.cisco.com/techsupport Copyright (c) 1986-2009 by Cisco Systems, Inc. Compiled Wed 02-Dec-09 15:23 by prod_rel_team ROM: System Bootstrap, Version 15.0(1r)M1, RELEASE SOFTWARE (fc1) c2921-CCP-1-xfr uptime is 2 weeks, 22 hours, 15 minutes System returned to ROM by reload at 06:06:52 PCTime Mon Apr 2 1900 System restarted at 06:08:03 PCTime Mon Apr 2 1900 System image file is "flash:c2900-universalk9-mz.SPA.150-1.M1.bin" Last reload reason: Reload Command Cisco CISCO2921/K9 (revision 1.0) with 475136K/49152K bytes of memory. Processor board ID FHH1230P04Y 1 DSL controller 3 Gigabit Ethernet interfaces 9 terminal lines 1 Virtual Private Network (VPN) Module 1 Cable Modem interface 1 cisco Integrated Service Engine-2(s) Cisco Foundation 2.2.1 in slot 1 DRAM configuration is 64 bits wide with parity enabled. 255K bytes of non-volatile configuration memory. 248472K bytes of ATA System CompactFlash 0 (Read/Write) 62720K bytes of ATA CompactFlash 1 (Read/Write) Configuration register is 0x2142 (will be 0x2102 at next reload) Router# Note: In order to recover your password when password recovery functionality is disabled, refer to the Recovering a Device section of No Service Password-Recovery. It refers from www.cisco.com More related: The Upgrading and Installation for Cisco Router License Brief Talk on Static Routing Configuration Experiment 7
- 8. About Configuring Cisco Router 2901 / Port Forwarding More Cisco products and Reviews you can visit: http://www.3anetwork.com/blog 3Anetwork.com is a world leading Cisco networking products wholesaler, we wholesale original new Cisco networking equipments, including Cisco Catalyst switches, Cisco routers, Cisco firewalls, Cisco wireless products, Cisco modules and interface cards products at competitive price and ship to worldwide. Our website: http://www.3anetwork.com Telephone: +852-3069-7733 Email: info@3Anetwork.com Address: 23/F Lucky Plaza, 315-321 Lockhart Road, Wanchai, Hongkong 8