rip split-horizon experiment
Experimental platform: GNS3
GNS3 is a with a graphical interface can run multiple platforms (including Windows, Linux, and MacOS, etc.) network virtualization software . Cisco network device administrator or want to pass CCNA , CCNP , CCIE can be done simulation experiments related to operating and other stakeholders Cisco certification exam through it. It also can be used for virtual experience Cisco IOS IOS or inspection to be in a real router deployment configuration implemented on.
Simply put it is dynamips a graphical front-end, compared to the direct use dynamips Such virtual software is easier to use and more operational.
GNS3 incorporates the following software:
Dynamips : it allows users to directly run a Cisco Systems (IOS) simulator
Dynagen : Dynamips text is displayed front-end
PEmu : PIX firewall device simulator.
Winpcap : Windows platform under a free, public network access systems. Development winpcap this item
Object is to provide the ability to access network infrastructure for win32 applications.
Good design network topology
Analog Cisco routing equipment and PIX firewall
Simulation of simple Ethernet , ATM and Frame Relay Switch
Can be loaded and saved as Dynamips configuration format, that is for use dynamips core of virtualization software has good compatibility support exports some file formats (JPEG, PNG, BMP and XPM ) is.
I. Experimental topology
Second, the experimental script
R1:
configure terminal
interface f0/0
ip address 10.31.1.1 255.255.255.252
no shutdown
exit
router rip
network 10.31.1.0 0.0.0.0
network 10.31.10.0 0.0.0.3
version 2
no auto-summary
exit
interface loopback1
ip address 10.31.1.1 255.255.255.255
exit
R2:
configure terminal
interface f1/0
ip address 10.31.10.2 255.255.255.252
no shutdown
interface f2/0
ip address 10.31.10.5 255.255.255.252
exit
router rip
network 10.31.10.3 0.0.0.3
network 10.31.10.4 0.0.0.3
network 10.31.1.0 0.0.0.0
version 2
no auto-summary
exit
interface loopback1
ip address 10.31.1.2 255.255.255.255
exit
R3:
configure terminal
interface f3/0
ip address 10.31.10.6 255.255.255.252
no shutdown
exit
router rip
network 10.31.10.7 0.0.0.0
network 10.31.1.0 0.0.0.3
version 2
no auto-summary
exit
interface loopback1
ip address 10.31.1.3 255.255.255.255
exit
Third, the experimental verification
In the router default, split horizon function is enabled. In the router R1 f0 / 0 port using no ip split-horizon
Enable the split horizon:
After closing the open split horizon
