Este documento descreve como recuperar as senhas enable password e enable secret. Essas senhas protegem o acesso aos modos EXEC privilegiado e de configuração. A senha enable password pode ser recuperada, mas a senha enable secret é criptografada e deve ser substituída por uma nova senha. Utilize o procedimento descrito neste documento para substituir a senha enable secret.
Não existem requisitos específicos para este documento.
As informações nesse documento têm base nessa versão do hardware:
Roteador dos Serviços integrados do Cisco 1900 Series
As informações neste documento foram criadas a partir de dispositivos em um ambiente de laboratório específico. Todos os dispositivos utilizados neste documento foram iniciados com uma configuração (padrão) inicial. Se a sua rede estiver ativa, certifique-se de que entende o impacto potencial de qualquer comando.
Consulte Procedimentos de Recuperação de Senhas para obter informações sobre como recuperar senhas para os produtos relacionados.
Consulte as Convenções de Dicas Técnicas da Cisco para obter informações sobre convenções de documentos.
Execute estas etapas a fim recuperar a sua senha:
Conecte um terminal ou PC com emulação de terminal à porta de console do roteador. Utilize estas configurações de terminal:
taxa de baud 9600
Sem paridade
8 bits de dados
1 bit de parada
Nenhum controle de fluxo
Consulte estes documentos para obter informações sobre como cabear e conectar um terminal à porta de console ou à porta AUX:
Se você puder acessar o roteador, digite show version no prompt e registre a opção de registro de configuração. Consulte Exemplo de Procedimento de Recuperação de Senhas para exibir a saída de um comando show version.
Note: O registro de configuração é ajustado tipicamente a 0x2102 ou a 0x102. Se você não for mais capaz de acessar o roteador (devido a um login ou senha de TACACS esquecidos), poderá afirmar com segurança que seu registro de configuração está definido como 0x2102.
Use a chave liga/desliga para desligar o roteador. Em seguida, ligue-o novamente.
Note:
Para simular este passo em um Cisco 6400, remova e reinsira a placa Node Route Processor (NRP) ou Node Switch Processor (NSP).
Para simular este passo em um Cisco 6x00 com NI-2, remova e reinsira a placa NI-2.
Ruptura da imprensa no teclado terminal um par vezes depois que você vê o carregamento de programa da mensagem completo, ponto de entrada: 0x80008000, tamanho: 0x6fdb4c a fim pôr o roteador no ROMMON.
Note: Os valores do ponto de entrada e do tamanho são sujeitados ao Roteadores.
Se a sequência de interrupção não funcionar, consulte Combinações de Sequências de Teclas de Interrupção Padrão Durante a Recuperação de Senhas para obter outras combinações de chaves.
Se incapaz para quebrar no modo ROMMON, execute estas etapas:
Remova o flash.
Recarregue o roteador. O roteador terminará acima no modo ROMMON.
Introduza o flash.
Execute o procedimento padrão para a recuperação de senha.
Digite confreg 0x2142 no prompt rommon 1> para inicializar da Flash.
Este passo ignora a configuração de inicialização onde as senhas são armazenadas.
Digite reset no prompt rommon 2>.
O roteador é reinicializado, mas ignora a configuração salva.
Digite no após cada pergunta de instalação ou pressione Ctrl-C para pular o procedimento de configuração inicial.
Digite enable no prompt Router>.
Você está no modo enable e deve ver o prompt Router#.
Digite configure memory ou copy startup-config running-config para copiar a RAM não volátil (NVRAM) para a memória.
aviso: Não incorpore a partida-configuração da executar-configuração da cópia nem escreva-a. Esses comandos apagam sua configuração de inicialização.
Digite show running-config.
O comando show running-config exibe a configuração do roteador. Nesta configuração, o comando shutdown é mostrado em todas as interfaces, o que indica que todas as configurações estão desativadas no momento. Além disso, as senhas (enable password, enable secret, vty, console) podem estar em um formato criptografado ou não criptografado. Você pode reutilizar senhas não criptografadas. No entanto, as senhas criptografadas devem ser alteradas para um novo valor.
Digite configure terminal.
O prompt hostname(config)# é exibido.
Digite enable secret <password> para alterar a senha enable secret. Por exemplo:
hostname(config)#enable secret cisco
Execute o comando no shutdown em cada interface usada.
Se você executar um comando show ip interface brief, todas as interfaces que você desejar usar deverão exibir up up.
Digite config-register <configuration_register_setting>. Onde configuration_register_setting é o valor que você registrou no passo 2 ou 0x2102. Por exemplo:
hostname(config)#config-register 0x2102
Pressione Ctrl-z ou end para sair do modo de configuração.
O prompt hostname# é exibido.
Digite write memory ou copy running-config startup-config para confirmar as alterações.
Esta seção fornece um exemplo do procedimento de recuperação de senhas. Este exemplo foi criado com um Cisco 2900 Series ISR. Mesmo se você não usa um Cisco 2900 Series ISR, esta saída fornece um exemplo do que você deve experimentar em seu produto.
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. A summary of U.S. laws governing Cisco cryptographic products may be found at: http://www.cisco.com/wwl/export/crypto/tool/stqrg.html If you require further assistance please contact us by sending email to export@cisco.com. 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) 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> !--- The router was just powercycled, and during bootup a !--- break sequence was sent to the router after seeing the following message !--- program load complete, entry point: 0x80008000, size: 0x6fdb4c. ! 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 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 --- 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 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 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) 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#