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What if I say that there is one simple windows10 feature to turn off blue light, which is turned off by default and can help you sleep better, especially if you work at night on your laptop.

In this tutorial i will show you how to install Backtrack 5 R3 in Vmware workstation 8, it is recently  released by offensive security team and it is used by penetration testers world…

This exercise has been completed on Nexus 7K titanium emulator. I am running two N7K titanium machines inside vmware workstation and have connected 7 network adapters to emulate the physical…

This lab has been completed on Nexus 7010 with the following hardware and software installed; you can take a look at Cisco Nexus 7000 user accounts and RBAC in my…

We will be working on the above-mentioned topology on GNS3. Our goal is to make a VPN S2S tunnel between Arizona ASA1 running code 8.4 and Nevada router, and finally,…

In this article, we will discuss Nexus 7K user accounts and RBACs

Gateway Load Balancing Protocol (GLBP) is a Cisco proprietary protocol that attempts to overcome the limitations of existing redundant router protocols by adding basic load balancing functionality. Watch the short video and take a quiz to get a quick understanding of GLBP.

How to copy a large “Show Tech-support” output from a Cisco device using Putty. This is useful in case you are unable to copy the entire content of the output in one go.

Bridging for me is simply straightforward here in Bridging we are NOT rewriting the Layer 3 packet simply forwarding  the Layer 3 information in Layer 2 frame intact from one…

Here i have taken a simple topology R1 is connecting directly over Serial 0/0 link to BB1 , and as we know we dont have much access to Backbone routers…

Today we will discuss not so explored cisco outstanding feature OER/Pfr and see how it can monitor and make decisions on its own and route  traffic on the best available…

Today we will be discussing MSDP with BGP ipv4 multicast address-family. The topology is simple we have taken four routers R1 in BGP AS 1 , R5 in BGP AS…

We'll discuss STP Root Guard, which prevents Layer 2 loops in network anomalies.

3560/3550 Recovery Procedure———————————— Connect a PC to the console port of the switch, Use a terminal emulation program such as Microsoft Windows HyperTerminal in order to establish the console session.…

Configure Replace ————————– If you want to replace your running configuration with the configuration saved in your router flash: memory , you can simply follow the procedure:- First of all…

eBGP Peering ——————- We are able to peer with a tool in different Autonomous System utilizing eBGP. The AD(administrative distance) for eBGP friends is 20. By default the time-to-live(TTL) is…

Dot1x Authentication ————————– Recently i have configured the Dot1x authentication in my network, thought of posting on my blog. It is a cool feature,with Dot1x authentication we can provide added…

QinQ Tunneling ———————— This is the method basically used by service providers to preserve Vlan-Ids and to segregate traffic of different customers.It enables service providers to use a single VLAN…

MPLS Terminologies ————————– >MPLS:-The evolution of MPLS was Cisco’s TAG Switching however as it seems it was Cisco’s proprietary so it must be used in Cisco world only,to make it…

OSPF /32 issue in MPLS VPN Scenario =========================== Yesterday i and my office colleague were doing a MPLS-VPN scenario,where we stuck at a place , the issue was really good…