How to Configure Static routing on juniper router in gns3

Junos static route configuration:

In this article i will show you how to configure static routing with junier router on gns3. For configuring static routing you need to define the route as static and with a next-hop address with it.

Please note this lab is performed only for study and practice purposes using Junos olive , which is unsupported and unsupportable platform & it is not suitable for any type of commercial use.
Lab Requirements

You have three juniper routers connected with each other, you have the following tasks to perform:

Configure all the interfaces with right IP address (According to figure)
Configure static routes between all routers so that they can communicate with each other.

Other Detail:

Junos image version= JunOS Olive image 12.1
Gns3 version= Gns3 1.1 (you can use any version)
VM VirtualBox version= 4.2.4 (you can use any version)

you can visit how to configure junos on gns3 and Basic JunOS commands.

Set IP addresses of all interfaces of juniper router:

For setting ip address of interface you need the following commands.

JunOs2 configuration:

login: root

root@% Cli

root > configure

[edit]

root # set interfaces em0 unit 0 family inet address 172.16.1.1/24

You can also configure some loopback with these commands:

root # set interfaces lo0 unit 55 family inet address 111.0.0.1/32

root # commit

Having issue with commit command visit missing mandatory statement'root-authentication'

JunOs3 configuration:

Cli

configure

set interfaces em0 unit 0 family inet address 172.16.1.2/24

set interfaces em1 unit 0 family inet address 192.168.1.1/24

commit

JunOs4 configuration:

Cli

configure

set interfaces em0 unit 0 family inet address 192.168.1.2/24

You can also configure some loopback with these commands:

set interfaces lo0 unit 55 family inet address 222.0.0.1/32

commit

Configure static routing on Juniper routers:

For configuration of static routing you need next hope addresses:

Static routing on JunOs2

On junos2 111.0.0.1/32 and 172.16.1.0/24 are directly connected networks whereas 192.168.1.1/24 and 222.0.0.1/32 are remote or destination networks and inaccessible from junos2 . You need to configure static routes for making these routes accessible on junos2. Nex-hop address is 172.16.1.2 for all these routes.

Cli
configure

set routing-options static route 192.168.1.0/24 next-hop 172.16.1.2

set routing-options static route 222.0.0.0/32 next-hop 172.16.1.2

Static routing on JunOs3

111.0.0.1/32 and 222.0.0.1/32 are inaccessible networks on junos3 and need static routes. Nex-hop addresses are 172.16.1.1 for 111.0.0.1/32 and 192.168.1.2 for 222.0.0.1/32.

Cli

configure

set routing-options static route 222.0.0.0/32 next-hop 172.16.1.1

set routing-options static route 111.0.0.0/32 next-hop 192.168.1.2

Static routing on JunOs4

Nex-hop address for all routes on junos4 is 192.168.1.1.

Cli

configure

set routing-options static route 172.16.1.0/24 next-hop 192.168.1.1

set routing-options static route 111.0.0.0/32 next-hop 192.168.1.1

Testing:

You can verify your configurations with following results: