GNS3 experiment: multi-zone interworking by dynamic routing protocol OSPF
Overview: OSPF protocol is a link state routing protocol, AS can be divided into regions.
The main features are :
1, can be adapted to large-scale network
2, the route change fast convergence
3, no routing loops
4, support for variable length subnet mask
5, zoning support
6, in order to support the multicast address protocol packets.
Start of the experiment :
1, open GNS3 simulator, adding routers 4, the PC 2, as shown below, we set the area to the left area 1, area 2 is on the right, and it in turn coupled to the ip address.
PC1 IP setting
PC2 IP setting
route 1 IP set
route 2 IP set
route 3 IP set
route 4 IP set
2, set the router ID of route1 1.1.1.1, route2 router ID is 2.2.2.2, route3 router ID is 3.3.3.3, route4 router ID to 4.4.4.4. and declare their directly connected network segment. Priority allocation and route1 route4, and at this time route1 route4 router as the DR, route2 and route3 to the ABR.
route1 OSPF router ID and disposed
route2 OSPF router ID and disposed
route3 OSPF router ID and disposed
route4 OSPF router ID and set
configuration, ping test instruction
PC1 PC2 of ping
PC2 PC1 of ping
test is completed.
Note: The router ID is very important for OSPF, if no ID, OSPF will not function properly. It is proposed to develop the habit of manually specify the router ID .
