Inter VLAN routing with CEF - GNS3
Place your GNS3 router as below, i use Cisco 3640 with additional slot NM-16ESW to act as a layer 3 switch for the layer 2 switch, set the properties as below port 11 access port for vlan 100 port 12 access port for vlan 200 port 13 trunk, dot1q encapsulation create vlan 100 and 200 on router Router>en Router#vlan da Router(vlan)#vla 100 repeat the same to create vlan 200 enable inter vlan routing Router(config)#ip routing Router(config)# configure the vlan interface(routed interface for that vlan), vlan 1 is for management interface Vlan1 ip address 172.16.1.1 255.255.255.0 ! interface Vlan100 ip address 192.168.100.1 255.255.255.0 ! interface Vlan200 ip address 192.168.200.1 255.255.255.0 configure trunking *always remember to no shutdown on interface, by default, like router, the interface is shutdown, unlike switch. Once the interface is up, trunk will work then the int vlan will be up Router(config)#int fa 0/1 Router(co...