配置3层交换机VLAN间通信
2024-09-19 02:40:53
SW2
Switch>en
Switch#conf t
Enter configuration commands, one per line. End with CNTL/Z. Switch(config)#hostname SW2
SW2(config)#vlan
SW2(config-vlan)#name caiwu
SW2(config-vlan)#vlan
SW2(config-vlan)#name it
SW2(config-vlan)#exit SW2(config)#interface range fastEthernet /- SW2(config-if-range)#switchport mode access SW2(config-if-range)#switchport access vlan SW2(config-if-range)#interface fastEthernet / SW2(config-if)#switchport mode access SW2(config-if)#switchport access vlan
SW2(config-if)#exit SW2(config)#do show vlan br VLAN Name Status Ports
---- -------------------------------- --------- -------------------------------
default active Fa0/, Fa0/, Fa0/, Fa0/
Fa0/, Fa0/, Fa0/, Fa0/
Fa0/, Fa0/, Fa0/, Fa0/
Fa0/, Fa0/, Fa0/, Fa0/
Fa0/, Fa0/, Fa0/, Fa0/
Fa0/, Gig0/, Gig0/
caiwu active Fa0/, Fa0/
it active Fa0/
fddi-default active
token-ring-default active
fddinet-default active
trnet-default active SW2(config)#interface gigabitEthernet / SW2(config-if)#switchport mode trunk
SW1
Switch>en
Switch#conf t
Enter configuration commands, one per line. End with CNTL/Z. Switch(config)#hostname SW1
SW1(config)#vlan
SW1(config-vlan)#name caiwu
SW1(config-vlan)#vlan
SW1(config-vlan)#name it
SW1(config-vlan)#exit SW1(config)#interface gigabitEthernet / SW1(config-if)#switchport mode trunk
Command rejected: An interface whose trunk encapsulation is "Auto" can not be configured to "trunk" mode. #三层交换机要打trunj，需要开启dot1q协议
SW1(config-if)#switchport trunk encapsulation dot1q SW1(config-if)#switchport mode trunk SW1(config-if)# exit #进入VLAN2
SW1(config)#interface vlan %LINK--CHANGED: Interface Vlan2, changed state to up %LINEPROTO--UPDOWN: Line protocol on Interface Vlan2, changed state to up #配置VLAN2的网关
SW1(config-if)#ip add 192.168.2.254 255.255.255.0 SW1(config-if)#no shutdown SW1(config-if)#interface vlan %LINK--CHANGED: Interface Vlan3, changed state to up %LINEPROTO--UPDOWN: Line protocol on Interface Vlan3, changed state to up SW1(config-if)#ip add 192.168.2.254 255.255.255.0 SW1(config-if)#no shutdown SW1(config-if)#exit SW1#show ip interface brief
Interface IP-Address OK? Method Status Protocol
FastEthernet0/ unassigned YES unset down down
FastEthernet0/ unassigned YES unset down down
FastEthernet0/ unassigned YES unset down down
FastEthernet0/ unassigned YES unset down down
FastEthernet0/ unassigned YES unset down down
FastEthernet0/ unassigned YES unset down down
FastEthernet0/ unassigned YES unset down down
FastEthernet0/ unassigned YES unset down down
FastEthernet0/ unassigned YES unset down down
FastEthernet0/ unassigned YES unset down down
FastEthernet0/ unassigned YES unset down down
FastEthernet0/ unassigned YES unset down down
FastEthernet0/ unassigned YES unset down down
FastEthernet0/ unassigned YES unset down down
FastEthernet0/ unassigned YES unset down down
FastEthernet0/ unassigned YES unset down down
FastEthernet0/ unassigned YES unset down down
FastEthernet0/ unassigned YES unset down down
FastEthernet0/ unassigned YES unset down down
FastEthernet0/ unassigned YES unset down down
FastEthernet0/ unassigned YES unset down down
FastEthernet0/ unassigned YES unset down down
FastEthernet0/ unassigned YES unset down down
FastEthernet0/ unassigned YES unset down down
GigabitEthernet0/ unassigned YES unset up up
GigabitEthernet0/ unassigned YES unset down down
Vlan1 unassigned YES unset administratively down down
Vlan2 192.168.2.254 YES manual up up
Vlan3 192.168.3.254 YES manual up up
SW1# #开启三层交换的路由功能 SW1#conf t
Enter configuration commands, one per line. End with CNTL/Z. SW1(config)#ip routing
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