In the topics I will show my first run Junos in GNS3 but I will not demonstrate how to get Junos and put it to GNS3 if you want to know I think you can google it.
So now let start!
Below is topology that I will run JunOS.
After JunOS boot it’s will require authentication to access to it. Here enter root for login name and then hit enter.
Amnesiac (ttyd0)
login: root
It’s will go to Unix Shell mode. You can try couple of Unix command.
root@% pwd /root root@% ls .cshrc .login .profile root@%
So if you want to do some thing with network stuff you must go into CLI mode which we can move to CLI by cli command.
root@% cli root>
Next I am going to see version of this JunOS, default configuration and config basic interface.
- Version
root> show version Model: olive JUNOS Base OS boot [12.1R1.9] JUNOS Base OS Software Suite [12.1R1.9] JUNOS Kernel Software Suite [12.1R1.9] JUNOS Crypto Software Suite [12.1R1.9] JUNOS Packet Forwarding Engine Support (M/T Common) [12.1R1.9] JUNOS Packet Forwarding Engine Support (M20/M40) [12.1R1.9] JUNOS Online Documentation [12.1R1.9] JUNOS Voice Services Container package [12.1R1.9] JUNOS Border Gateway Function package [12.1R1.9] JUNOS Services AACL Container package [12.1R1.9] JUNOS Services LL-PDF Container package [12.1R1.9] JUNOS Services PTSP Container package [12.1R1.9] JUNOS Services Stateful Firewall [12.1R1.9] JUNOS Services NAT [12.1R1.9] JUNOS Services Application Level Gateways [12.1R1.9] JUNOS Services Captive Portal and Content Delivery Container package [12.1R1.9] JUNOS Services RPM [12.1R1.9] JUNOS Services HTTP Content Management package [12.1R1.9] JUNOS AppId Services [12.1R1.9] JUNOS IDP Services [12.1R1.9] JUNOS Services Crypto [12.1R1.9] JUNOS Services SSL [12.1R1.9] JUNOS Services IPSec [12.1R1.9] JUNOS Runtime Software Suite [12.1R1.9] JUNOS Routing Software Suite [12.1R1.9] root>
- Default configuration
root> show configuration ## Last commit: 2012-05-11 11:54:23 UTC by root version 12.1R1.9; system { syslog { user * { any emergency; } file messages { any notice; authorization info; } file interactive-commands { interactive-commands any; } } ## Warning: missing mandatory statement(s): 'root-authentication' } root>
- Config Basic Interface
To config IP to interface we must go to configuration mode.
root> configure Entering configuration mode [edit] root#
One thing you must remember here is the symbol has change from > to #. root# is mean we are in the configuration mode which we can edit and change JunOS configuration.
Next go to config IP to interface Ethernet 0 on JunOS-1 Router.
root# set interfaces em0 unit 0 family inet address 192.168.1.1/24
root# run show interfaces terse Interface Admin Link Proto Local Remote cbp0 up up demux0 up up dsc up up em0 up up em0.0 up up inet 192.168.1.1/24 em1 up up em2 up up em3 up up em4 up up em5 up up gre up up ipip up up irb up up lo0 up up lo0.16384 up up inet 127.0.0.1 --> 0/0 lo0.16385 up up inet 128.0.0.4 --> 0/0 inet6 fe80::200:ab0f:fc4d:e700 lsi up up mtun up up pimd up up pime up up pip0 up up pp0 up up tap up up [edit] root#
Every time we change or edit configuration we must commit to take an effect.
root# commit [edit] 'system' Missing mandatory statement: 'root-authentication' error: commit failed: (missing statements) [edit] root#
Yes I have an error. We can’t commit if we don’t have root authentication. Here I didn’t set root password yet. Now do it!!!
root# set system root-authentication plain-text-password New password: error: require change of case, digits or punctuation [edit]
It’s error because I set password 123456. It must contain number, character and special code for security.
root# set system root-authentication plain-text-password New password: Retype new password: [edit] root#
Yes it’s work now. Let commit our config again.
root# commit commit complete [edit] root#
Cool! it works.
Now let do it as JunOS-1 in JunOS-2 and then ping to each other. I will ping to interface in JunOS-2.
root# run ping 192.168.1.2 PING 192.168.1.2 (192.168.1.2): 56 data bytes 64 bytes from 192.168.1.2: icmp_seq=0 ttl=64 time=1.947 ms 64 bytes from 192.168.1.2: icmp_seq=1 ttl=64 time=1.495 ms 64 bytes from 192.168.1.2: icmp_seq=2 ttl=64 time=1.764 ms ^C --- 192.168.1.2 ping statistics --- 3 packets transmitted, 3 packets received, 0% packet loss round-trip min/avg/max/stddev = 1.495/1.735/1.947/0.186 ms [edit] root#
In configuration mode if we want to use ping command we have to use run before ping.
In normal mode we no need to use run.
root> ping 192.168.1.2 PING 192.168.1.2 (192.168.1.2): 56 data bytes 64 bytes from 192.168.1.2: icmp_seq=0 ttl=64 time=64.864 ms 64 bytes from 192.168.1.2: icmp_seq=1 ttl=64 time=1.851 ms 64 bytes from 192.168.1.2: icmp_seq=2 ttl=64 time=1.729 ms ^C --- 192.168.1.2 ping statistics --- 8 packets transmitted, 8 packets received, 0% packet loss round-trip min/avg/max/stddev = 1.644/9.951/64.864/20.760 ms root>
Now we are done for basic!!!