How to Configure Juniper Router On Gns3
Gns3 support diffrent network devics to simulate. Cisco routers work in gns3 with dynampics, on the other hand if you want to run juniper router on gns3 you need qemu or oracle virtual box. In this post we will learn how to run juniper router in gns3 environment.
We need following software :
1. Gns3 - Download Gns3
2. Oracle Virtual Box - Download Virtual box
3. Juniper Router image -Download via torrent
Steps:
1.Download and install Gns3 if you don't have from the above link.
2 Download the Juniper router image from the above given link.
after the juniper image is downloaded keep it in a seprate folder.
3. now run Gns3 and go to :
Edit > Preference > Qemu > JunOS
Save the JunOS image and click apply then ok.
now you will see that juniper router is active in the router-list.
Drag and drop the juniper router and clisk start and open the console of your juniper router after the router boot completes it will ask for login type root and press enter you will get the access of router.
Enjoy !!!
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Configuring Password on Cisco Routers
Hello Friends it may be possible in many cases that you want your cisco router to be configured with a password so that no outsider can make access to your cisco router in this post i'm going to describe the procedure of configuring password on a cisco router
Types of Passwords on Cisco Routers
- 1. Line Passwords
- 2. Privileged mode Passwords (enable mode )
- 3. Username Passwords ( Optional )
First we will understand these Passwords that where do they work.
1. Line Passwords
Console Line - The console is the main serial administrative port on a router. This is where you configure the router when it is new and has no network configuration.
Aux Line – The aux line is an auxiliary port. Like the console, it is a physical port on every router. You can think of it as a backup console port. Besides being a backup console port, the aux port is periodically used for administrative console dial up access to the router.
VTY Lines – Vty lines are “virtual tty” lines and are used when you connect to the router via telnet or ssh. These are not physical lines on the router but virtual “inbound network lines”.
Async Lines – Async lines are asynchronous serial lines and are optional. These async lines are created when you insert an async serial card in a router. You can use the async serial lines to connect dumb-terminals (text-based terminals), serial printers, or modems.
All of these different lines need a password configured on them. Let’s find out how to configure Cisco router line passwords.
Configuring Cisco Routers with Passwords
Enable Password
Enable Password
To configure enable password on cisco router turn on your cisco router and go through the following commands :
Maati>enable
Maati#configure terminal
Maati(config)#enable password your password
Maati(config)#exit
Screenshot of My router CLI :
we can see the enable password configured on a cisco router by using the #show run command if you want your enable password to be encrypted you should use the folloing steps insted
Maati>enable
Maati#configure terminal
Maati(config)#enable secret your password
Maati(config)exit
Screenshot of My Router CLI :
Console Password
now we will learn how to configure the console password , for console password we will use two commands one for setting password and second to enable console password at the time of login through console. Here is the set of commands you need to follow to set console password.
Maati>enable
Maati#configure terminal
Maati(config)#line console 0
Maati(config-line)password your password
Maati(config-line)login
Maati(config-line )exit
Screenshot Of My Router CLI :
Telnet Password
In case you are not at your office and hence no console access to your Cisco router then you can access your router remotly, and you must set a telnet password on your cisco router so that no one else can access your cisco router remotly.
Following is the set of commands used to set telnet Password on Cisco Routers.
Maati>enable
Maati#configure terminal
Maati(config)#line vty 0 15
Maati(config-line)password your password
Maati(config-line)login
Maati(config-line)exit
Screenshot My cisco Router CLI :
Subnetting Question 1
Subnetting is the method to divide one network into more than one individual networks and finding the limits of new networks. Here are some questions, which test your subnetting skills.You have to find out the boundaries of the network, the valid ip address range of network and total usable ip addresses in the network in the following questions.
Q: Find out the network address, Broadcast address, first vaild host ip address, last valid host ip address and number of valid ip addresses for the following ip address and subnet-mask/CIDR combination. - 192.168.10.93/25
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Next Question
Q: Find out the network address, Broadcast address, first vaild host ip address, last valid host ip address and number of valid ip addresses for the following ip address and subnet-mask/CIDR combination. - 192.168.10.93/25
Show Answer || Hide Answer
Next Question
Tag :
Subnetting Practice
Configure SSH Security on Cisco Routers
Hey Friends here is a new post for you, in this post we will discuss a secure way to configure the cisco router remotly.
SSH stands for Secure Shell and it is used to exchange the configuration data b/w client device and n/w device like router, switch or server in encrypted format.
To configure SSH on a cisco Router you need to follow the following steps.
1. Configure a hostname of your router
Router>enable
Router#configure terminal
Router(config)#hostname Maati
Maati(config)#
2. Configure a Domain Name on the router
Maati(config)#ip domain-name domain.com
3. Generate Cryptography keys
Maati(config)#cryprto key generate rsa
4. Create User Account(s)
Maati(config)#username Maati password password
5. Enable VTY port for SSH
Maati(config)#line vty 0 15
Maati(config)#login local
Maati(config)#transport input ssh
Optional settings
1. Setting SSH version
Maati(config)#ip ssh version <1-2>
you can either use version 1 or version 2 for ssh
2. Setting Login Retries
Maati(config)#ip ssh retries 4
I have set retries to 4 you can change it as per your requirement
Tag :
Helpful Tips and Tricks
How to Configure ASDM for cisco ASA firewall in GNS3
How to Configure ASDM for cisco ASA firewall in GNS3
ASA firewall can be configured from the command line as well as GUI is also available for the configuration ASA. ASDM (Adaptive security device manager) is the software that can be used to configure ASA graphically. In previous post I told how to use the ASA firewall in gns3, in this post we will discuss the integration of ASDM with ASA in gns3.
Steps:
1. First of all download the required image file of ASDM from the following link.
Asdm-641.bin
2. Now open the GNS3, drag ASA firewall, a cloud and an Ethernet switch in the topology field of GNS3 and connect them as shown in the following diagram.
3. In the cloud we will use the Microsoft loopback adapter to virtually connect our real pc with the ASA FIREWALL because the ASDM software will be installed on the ASA FIREWALL as well as our computer.
4. To select Microsoft loopback adapter right click on cloud icon and select configure. Now in the window that opened on the left side click on the C1 or whatever the cloud number is and then from the dropdown select the Microsoft loopback adapter and add it. Apply and ok.
Topology diagram after connections.
5. Now start the ASA Firewall and from command line assign the ip address on the e0 interface , likewise on the Microsoft loopback adapter use the ip address of same network.
In our case we will use the following two ip addresses
ASA interface – 192.168.10.1/24
Microsoft adapter – 192.168.10.2/24
Setting ip address on interface e0.
Ciscoasa>enable
Password:
Ciscoasa#configure terminal
Ciscoasa(config)#interface gigabitethernet 0
Ciscoasa(config-if)#ip address 192.168.10.1 255.255.255.0
Ciscoasa(config-if)#nameif maatisolution
Ciscoasa(config-if)#security-level 0
Ciscoasa(config-if)#no shutdown
6. After configuring the ip address on ASA interface and Microsoft loopback adapter test the ping connectivity between the two. ASA should be able to ping the loopback adapter. If problem persists try turning off the window’s firewall and then try again.
7. Now we will upload the ASDM image downloaded in first step to the ASA flash using TFTP server software installed on windows. We will use tftpd32 as the tftp server software.
Run the tftpd32 and set the two parameters as follows.
Current directory : the folder where you placed the file downloaded in first step
Server interface : 192.168.10.2 // this is the Microsoft loopback adapter.
How to create Microsoft Loopback Adapter in Windows
Microsoft Loopback Adapter can be used with gns3 for testing purposes and many more virtualization software. In this post we will discuss how we can create the Microsoft loopback adapter in windows 7.
Steps:
1. In part one create a Microsoft loopback interface in your windows.
2. Right click on “MY COMPUTER” icon on desktop and select the properties.
3. Now on the left hand side of window that opened select the device manager.
4. in the device manager go to menu bar go to ACTION >> ADD LEGECY HARDWARE.
5. Click next on the window that appeared.
6. On the second page select 2nd option “add the hardware that I manually select form a list (Advance) ” and click next.
7. On the next page select the “network adapters” option from the hardware list and click next.
Tag :
Helpful Tips and Tricks
