配置交换机管理地址和默认网关

Switch>en
Switch#conf t
Enter configuration commands, one per line.  End with CNTL/Z.
Switch(config)#no ip domain-lo
                 
Switch(config)#line con 0

Switch(config-line)#logging synchronous 

Switch(config-line)#exec-timeout 00
Switch(config-line)#exit


Switch(config)#interface  vlan 1
Switch(config-if)#ip add 192.168.1.1 255.255.255.0

Switch(config-if)#no shutdown 

Switch(config-if)#
%LINK-5-CHANGED: Interface Vlan1, changed state to up

%LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan1, changed state to up

Switch(config)#exit


#配置telnet密码登陆
Switch#conf t
Enter configuration commands, one per line.  End with CNTL/Z.
Switch(config)#line vty 0 4
Switch(config-line)#password ccna518
Switch(config-line)#exit



Switch(config)#enable secret 
% Incomplete command.
Switch(config)#enable secret ccnp518

#配置账号密码登陆

Switch(config)#username ccna password ccna
Switch(config)#line vty 0 4
Switch(config-line)#login local 
Switch(config-line)#end
Switch#
%SYS-5-CONFIG_I: Configured from console by console

#配置无密码登陆
Switch#conf t
Enter configuration commands, one per line.  End with CNTL/Z.
Switch(config)#line vty 0 4

Switch(config-line)#no login 

Switch(config-line)#privilege level 15
Switch(config-line)#end
Switch#
%SYS-5-CONFIG_I: Configured from console by console

#配置网关
Switch#conf t
Enter configuration commands, one per line.  End with CNTL/Z.

Switch(config)#ip default-gateway 192.168.1.254

Router>en
Router#conf t
Enter configuration commands, one per line.  End with CNTL/Z.

Router(config)#hostname R1

R1(config)#no ip domain-lo

R1(config)#line console 0
    
R1(config-line)#logging synchronous 

R1(config-line)#exit

R1(config)#interface fastEthernet 0/0

R1(config-if)#ip add 192.168.1.254 255.255.255.0

R1(config-if)#no shutdown 

R1(config-if)#exit

R1(config)#interface fa0/1

R1(config-if)#ip add 192.168.2.254 255.255.255.0

R1(config-if)#no shutdown 

R1(config-if)#exit

R1(config)#edn
 
R1(config)#exit

R1#show ip interface brief 
Interface              IP-Address      OK? Method Status                Protocol 
FastEthernet0/0        192.168.1.254   YES manual up                    up 
FastEthernet0/1        192.168.2.254   YES manual up                    up 
Vlan1                  unassigned      YES unset  administratively down down