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How to enable IPv6 on a Cisco router with cisco IOS

Good evening friends, today we will see how to enable IPv6 on a cisco router with cisco ios. To know what is IPv6, go here. Enabling IPv6 routing on a cisco router is pretty easy and involves only a few commands.

First of all, we have to enable the router to pass IPv6 traffic. In global configuration mode of the router, type command “ipv6 unicast-routing”. Then go to the specific interface on which you want to configure IPv6 addressing by typing command “interface <type> <number>”  as shown below.  Type command “ipv6 enable”.

Now let’s check whether IPv6 is enabled or not on our specified interface. Go back to Privileged Exec Mode  and type command “show ipv6  interface ethernet1/0″. To know about different modes on Cisco IOS, go here. Now when we type the above command, we can see that our device has been assigned a IPv6 address as shown below.

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How to connect Vmware with GNS3

I am self learning for CCNA. A few months back, I got a thought if we can simulate routers in Vmware Workstation. While I was searching for it I found a different solution, GNS3. After simulating routers in GNS3 and practicing CLI interface, I had another idea if we can simulate CISCO Graphical User Interface on our PC. This article is  result of that.

In this article, we are not only going to see how to connect Vmware with GNS3 but also see how to simulate CISCO Graphical user Interface (GUI). For this I use,

1. Vmware Workstation .

2. Windows XP as Guest OS.

3. Cisco Security Device Manager v25.

4. GNS3.

5.  C7200 Router Image.

Open Vmware Workstation. On the menu Select “Edit>Virtual Network Editor”. On the Virtual network editor, click on “Vmnet1″ network. It is a default Host-only type network adapter of Vmware. Observe its settings. Enable DHCP server.

Install Windows XP as a guest. On its virtual machine settings, change the network adapter to “Vmnet1″.

Power on the machine. Install Cisco SDM ( I leave the getting Cisco SDM part to you ). Open CMD and type “ipconfig” to see its IP address. Take note of this.

Open GNS3. Click on “Browse all devices”.

Select Router “c7200″ and drag it to the workspace. Do the same with “Cloud”.

Close the All Devices tab. Right click on the Cloud.  Select “Configure”, a ‘node configurator’ window will open. On this window, click on “C1″.

On the NIO Ethernet tab, in the “Generic Ethernet NIO tab” dropdown menu, select our network adapter (Vmnet1) from the dropdown menu and click on “Add”. Click on “OK” to close the window.

Right click on the router. Select “Configure”, click on “R1″. Select slots tab. In the Slot 1 dropdown menu, select “PA-4E”. Click on Apply an close the window. The selection PA-4E creates four Ethernet ports on the router. Right click on the router and start the router.

Add a link from “cloud( Vmnet1)” adapter to the “e1/0″ port on the router.

Hover your mouse over the router. We can see all the ports.

Similarly hover your mouse over the cloud to see its connections.

Right click on the router and select “Console”. In the global configuration mode, type the following commands.

ip http server”

ip http secure-server”

These commands set up http and https servers respectively which are needed for Cisco SDM.

Type the command “interface Ethernet 1/0″. We are entering into specific configuration mode of our connected interface. Type the command “ip address 192.168.10.3 255.255.255.0″. This sets the interface IP address and subnet mask. Make sure the router IP address is in the same subnet as that of our guest OS in Vmware workstation. Type “no shut” and exit to the privileged mode.

Let’s ping our guest from the router. to ensure that we are connected to Vmware Guest.

Since success rate is 100%  we have successfully connected Vmware and GNS3. Now let’s do the Cisco SDM part. On our Guest machine click on Cisco SDM. A SDM launcher window will open. Type the IP address of the router and click on Launch.

Internet Explorer will open as below. Make sure Internet Explorer is configured to allow pop ups and to allow Activex to run from the computer.

After some time the following popup will open. Don’t close it.

Then we might see a certificate warning. Click on Yes.

After some processing, Cisco SDM will open.

We have successfully simulated Cisco GUI on our PC. Happy practice friends.