Malaria Internal Body Systems

Brief Review CCNA: Router on a stick



Intervlan Switch using GNS3
refernce: Following post
show GNS3 configuration in order to have: a router-
run as a router-switch
run as PC

Topology is:




My target is to show:
-How to run as a router switch

-create vlan in gns3 -configure interfaces in trunk/access mode

Configure a router as switch Router 3640 and configures with a NM-16SW.
As soon as you need to connect the switch with a PC or a router, you have to use "manual configuration" in GNS3, otherwise it will no possible to configure switch interface in trunk/access mode.






Now interface Fastethernet 0/0 and 0/1 can be configure in trunk and access mode respectively:






Intervlan Switch using external-router:packet-tracer



Very simple configuration example of inter-vlan routing using an external router. Topology consist of one router 2621 and one switch 2950. There are two Vlan's indicated as Vlan 2, Vlan3 following ip address scheme: -VLAN 2 (native)10.0.0.0/24
-VLAN 3 10.0.1.0/24
Target is to allow communication between Vlan's using an external router as L3 routing devices.
Follow the configuration's for switch and router:

interface FastEthernet0/1
switchport trunk native vlan 2
switchport mode trunk
switchport nonegotiate ! interface FastEthernet0/2 switchport access vlan 2 switchport mode access interface FastEthernet0/3 switchport access vlan 3
switchport mode access




Router:


hostname Router
ip dhcp excluded-address 10.0.0.1 ip dhcp excluded-address 10.0.1.1
!
ip dhcp pool vlan2
network 10.0.0.0 255.255.255.0
default-router 10.0.0.1
ip dhcp pool Vlan3
network 10.0.1.0 255.255.255.0
default-router 10.0.1.1
interface FastEthernet0/0.2
encapsulation dot1Q 2 native
ip address 10.0.0.1 255.255.255.0
! interface FastEthernet0/0.3
encapsulation dot1Q 3
ip address 10.0.1.1 255.255.255.0


In the router configuration's note the two different address pool to allow a router to be a DHCP server for hosts.