CISCO Vlan配置

CISCO Vlan配置

来源： 王明阳的日志

pc1-5 ip 192.168.1.1-5

Switch>en

Switch#conf t

Switch(config)#host sw1

sw1(config)#vlan 2

sw1(config-vlan)#name student

sw1(config-vlan)#exit

sw1(config)#vlan 3

sw1(config-vlan)#name teacher

sw1(config-vlan)#exit

sw1(config)#int fa 0/1

sw1(config-if)#switchport mode access

sw1(config-if)#switchport access vlan 2

sw1(config-if)#exit

sw1(config)#int fa 0/2

sw1(config-if)#swi mo acc

sw1(config-if)#swi acc vlan 3

sw1(config-if)#end

%SYS-5-CONFIG_I: Configured from console by console

sw1#show vlan brief

VLAN Name Status Ports

---- -------------------------------- --------- ------------------------------- 1 default active Fa0/3, Fa0/4, Fa0/5, Fa0/6 Fa0/7, Fa0/8, Fa0/9, Fa0/10 Fa0/11, Fa0/12, Fa0/13, Fa0/14 Fa0/15, Fa0/16, Fa0/17, Fa0/18 Fa0/19, Fa0/20, Fa0/21, Fa0/22 Fa0/23, Fa0/24, Gig1/1, Gig1/2 2 student active Fa0/1

3 teacher active Fa0/2

1002 fddi-default active

1003 token-ring-default active

1004 fddinet-default active

1005 trnet-default active

配置Trunk

sw1(config)#int fa 0/24

sw1(config-if)#switchport mode trunk

sw1(config-if)#switchport nonegotiate

sw1(config-if)#switchport trunk encapsulation dot1q

sw1(config-if)#switchport trunk allowed vlan 2,3

sw1#show int fa 0/24 swi

Name: Fa0/24

Switchport: Enabled

Administrative Mode: trunk

Operational Mode: trunk

Administrative Trunking Encapsulation: dot1q

Operational Trunking Encapsulation: dot1q Negotiation of Trunking: Off

Access Mode VLAN: 1 (default)

Trunking Native Mode VLAN: 1 (default) Voice VLAN: none

switch2配置和switch1一样

pc1pc3pc5属于vlan2 pc2pc4属于vlan3 配置完后pc1能ping通pc3;pc2能ping通pc3 但其他都不能通pc5

pc5属于本地vlan1，所以改一下使pc5划到vlan2 sw1(config)#int fa 0/24

sw1(config-if)#switchport trunk native vlan 2