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CCNA study: FHRP or “First Hop Redundancy Protocols”

CCNA study: FHRP or “First Hop Redundancy Protocols”

| May 30, 2014 | 4 Replies

I’m amazed at how the approach of the CCNA certification has changed since the time I took my test and entered the Cisco world officially. Even though I personally believe Cisco has done a great job at gathering the topics and assembling tough evaluations, somehow there comes a point where technology changes and the topics […]

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Explicit Tracking of Group Membership and Fast Leave in IGMP

Explicit Tracking of Group Membership and Fast Leave in IGMP

| March 26, 2014 | Reply

  Before I explain what and how explicit tracking of group membership works in IGMP, let me give you a brief introduction to IGMP. A brief introduction to IGMP: Internet Group Management Protocol ( IGMP ) is used by end hosts and routers to exchange multicast group membership information. IGMP has two parts. One part […]

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What is Software Defined Networking (SDN) – Part 2

What is Software Defined Networking (SDN) – Part 2

| December 18, 2013 | 7 Replies

In my previous post, I explained what is Software Defined Networking (SDN). As I wanted to keep the introduction simple, I avoided discussing SDN internals in that post. Now that you understand what SDN is, let us get into other details.   SDN Internals In SDN, sequence of packets exchanged between two end-points is known as […]

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Interview with Liz Burn, Juniper Networks Certification Program Director

Interview with Liz Burn, Juniper Networks Certification Program Director

| November 25, 2013 | 1 Reply

The subject of Juniper Networks certifications is becoming more and more popular here on RouterFreak – just check the post You Don’t Need Cisco to be a Great Network Engineer and Junos Genius: your APP for Juniper Networks certifications. The question many of you have in mind is: why get a Juniper Networks Certification? Is it […]

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What is Software Defined Networking (SDN) – Part 1

What is Software Defined Networking (SDN) – Part 1

| November 13, 2013 | 6 Replies

The whole data communication industry is bullish about Software Defined Networking (SDN). What is SDN? Is it really a game changer? I think nobody knows that for sure because it is still evolving. While there have been some companies which have deployed SDN in their Data Centers, it is still not clear how and when it […]

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Junos Genius: your APP for Juniper Networks certifications

Junos Genius: your APP for Juniper Networks certifications

| October 22, 2013 | 5 Replies

Are you preparing for a Juniper Networks certification? Remember what we wrote some time ago: You Don’t Need Cisco to be a Great Network Engineer. Some of you may have already jumped on the Juniper wagon, as certified Engineers are still in high demand. Just recently the vendor released an interesting app to help all of […]

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Other Recent Posts

6-Steps Basic Configuration Tutorial For the Cisco ASA 5505 Firewall

6-Steps Basic Configuration Tutorial For the Cisco ASA 5505 Firewall

| March 30, 2015 | 4 Replies

By Harris Andrea The Cisco ASA 5505 Firewall is the smallest model in the new 5500 Cisco series of hardware appliances. Although this model is suitable for small businesses, branch offices or even home use, its firewall security capabilities are the same as the biggest models (5510, 5520, 5540 etc). The Adaptive Security technology of […]

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IP Addressing Part 1

IP Addressing Part 1

| March 26, 2015 | 3 Replies

Cisco CCNA Training:  IP Addressing Part 1 Here’s a great video to help you get a better understanding of ip addressing.

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No Nortel VPN Client for Vista 64bit… yet

No Nortel VPN Client for Vista 64bit… yet

| March 19, 2015 | 8 Replies

I’ve been doing a bit of work on Nortel Contivity VPN equipment lately and have been running into some mis-information that I hope I could clear up here. I got a request the other day from a customer who needed VPN access into their company that was running 64bit version of Microsoft Vista. I did […]

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2521, 2522 Frame Relay

2521, 2522 Frame Relay

| March 12, 2015 | Reply

Welcome all Router Freaks around the world! Where would we be without our trusty routers? Stuck to our internet cables, like everyone was back in prehistoric times! We no longer need to deal with inferior technology. Check out this site for the latest on new products and services that will enhance your internet experience. Whether […]

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Cisco Pix

Cisco Pix

| March 5, 2015 | Reply

Cisco PIX (Private Internet eXchange) is one of the most popular IP firewalls and network address translation (NAT) appliances. The PIX is a firewall appliance based on a hardened, specially built operating system, PIX OS, minimizing possible OS-specific security holes. The PIX runs a custom-written proprietary operating system originally called Finesse (Fast InterNEt Server Executive), […]

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