Inter-VLAN routing
how to config vlan inter-VLAN routing
topology:
- VNET1:192.168.10.0/24 (vlan 10)
- PC1: 192.168.10.2
- PC2: 192.168.10.3
- VNET2:192.168.20.0/24 (vlan 20)
- PC3: 192.168.20.2
- PC4: 192.168.20.3
- ROUTER IP (fa0/0.10): 192.168.10.1
- ROUTER IP (fa0/0.20): 192.168.20.1
SCRIPTS
management
- show vlan brief: show all configured vlan
setup vlan (tanpa setup ip dulu)
Switch>enable
Switch#conf t
Enter configuration commands, one per line. End with CNTL/Z.
Switch(config)#vlan 10
Switch(config-vlan)#name SALES
Switch(config-vlan)#ex
Switch(config)#vlan 20
Switch(config-vlan)#name IT
lalu setup mode
- trunk: untuk switch ke router
- access: untuk switch ke PC
setup untuk vlan 10 dan 10, masing2 dengan network 192.168.10.0/24 dan 192.168.20.0/24
script:
Switch#conf t
Enter configuration commands, one per line. End with CNTL/Z.
Switch(config)#int fa0/1
Switch(config-if)#switchport mode access
Switch(config-if)#switchport access vlan 10
Switch(config-if)#ex
Switch(config)#int fa0/2
Switch(config-if)#switchport mode access
Switch(config-if)#switchport access vlan 10
Switch(config-if)#ex
Switch(config)#int fa0/3
Switch(config-if)#switchport mode access
Switch(config-if)#switchport access vlan 20
Switch(config-if)#ex
Switch(config)#int fa0/4
Switch(config-if)#switchport mode access
Switch(config-if)#switchport access vlan 20
Switch(config-if)#ex
Switch(config)#
alternative script
Switch(config-if)#int range fa0/1-4
Switch(config-if-range)#switchport mode access
config untuk port fa0/5 ke router (pakai mode trunk)
Switch(config)#int fa0/5
Switch(config-if)#switchport mode trunk
Switch(config-if)#
inter-VLAN routing
enable port Fa0/0 (tanpa assign ip dahulu)
Router(config)#int fa0/0
Router(config-if)#no shut
Router(config-if)#
%LINK-5-CHANGED: Interface FastEthernet0/0, changed state to up
%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/0, changed state to up
assign ip untuk masing2 vlan
Router(config)#interface FastEthernet0/0
Router(config-if)#int fa0/0.10
Router(config-subif)#
%LINK-5-CHANGED: Interface FastEthernet0/0.10, changed state to up
%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/0.10, changed state to up
Router(config-subif)#encapsulation dot1q 10
Router(config-subif)#ip add 192.168.10.1 255.255.255.0
Router(config-subif)#ex
Router(config)#int fa0/0.20
Router(config-subif)#
%LINK-5-CHANGED: Interface FastEthernet0/0.20, changed state to up
%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/0.20, changed state to up
Router(config-subif)#encapsulation dot1q 20
Router(config-subif)#ip add 192.168.20.1 255.255.255.0
Router(config-subif)#
hasil output show vlan brief
Switch>show vlan brief
VLAN Name Status Ports
---- -------------------------------- --------- -------------------------------
1 default active 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, Gig0/1
Gig0/2
10 SALES active Fa0/1, Fa0/2
20 IT active Fa0/3, Fa0/4
1002 fddi-default active
1003 token-ring-default active
1004 fddinet-default active
1005 trnet-default active
Switch>
tambahan
- encapsulation dot1q: router on stick routing