Cisco登陆管理

1.console登录配置

cisco(config)#username cisco private 0 password cisco

cisco(config)#enable password cisco

cisco(config)#enable secret cisco

cisco(config)#service password-encryption

cisco(config)#line console 0

cisco(config-line)#exec-timeout 5 0

cisco(config-line)#logging synchronous

cisco(config-line)#login local

2.Telnet登录

cisco(config)#username ciscoprivate 0 password cisco

cisco(config)#enable password cisco

cisco(config)#enable secret cisco

cisco(config)#service password-encryption

cisco(config)#interface FastEthernet0/0

cisco(config-if)#ip address 192.168.1.1 255.255.255.0

cisco(config)#line vty 0 4

cisco(config-line)#exec-timeout 5 0

cisco(config-line)#logging synchronous

cisco(config-line)#login local

3.SSH登录

cisco(config)#ip domainname cisco.com //配置域名

cisco(config)#username cisco privilege 0 password 0 cisco //创建用户和密码，配置登陆级别

cisco(config)#enable password cisco //enable特权密码

cisco(config)#enable secret cisco //enable特权密码password/secret同时配置将使用sectet的密码

cisco(config)#service password-encryption //加密所有明文密码

cisco(config)#crypto keygenerate rsa //启用ssh使用rsa加密算法512(越高资源消耗越大)

cisco(config)#banner login ^C //登陆警告

******************** Warning *****************

Without authorization, pleasedo not log in, such as forced illegal intrusion,

The resulting consequences wewill reserve the right above the law. !!!^C

cisco(config)#interface FastEthernet0/0

cisco(config-if)#ip address 192.168.1.1255.255.255.0

cisco(config)##line vty 0 4

cisco(config-line)#exec-timeout 5 0 //5分钟超时

cisco(config-line)#logging synchronous //光标同步

cisco(config-line)#login local //使用本地验证

cisco(config-line)#transportinput ssh //仅允许登入的方式