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May 23, 2017  7:37 PM

How to setup a F5 BIG-IP LTM Virtual lab on VMware Fusion?

Yasir Irfan Yasir Irfan Profile: Yasir Irfan
certification, DHCP, Exam, F5, Fusion, Icon, labs, Mac, Network, subnet, Subnet mask, Topology, VMware, VMware ESX

After passing the F5 201 – TMOS Administration Exam, some of the professional friends were keen to know how to build a F5 practice lab on their personnel machines. In this post we will walk through how to build a virtual lab for F5 201 – TMOS Administration Exam on macOS Sierra...

February 10, 2017  8:12 PM

Cisco launches “Umbrella” Secure Internet Gateway

Yasir Irfan Yasir Irfan Profile: Yasir Irfan
Box, Cisco, cloud, DNS, GATEWAY, Internet, IP, IPS, malware, Network, Office 365, OpenDNS, Proxy, SaaS, Security, URL, Web

Cisco launches the industry first secure internet gateway (SIG) in the cloud with an intention to address the security requirements of todays; mobile, cloud-connected enterprise. And Umbrella happens to Cisco's Secure Internet gateway product. In past, organisations contained their services like...


January 29, 2017  7:10 AM

Cisco launches ISE 2.2 with a promise of more visibility and control

Yasir Irfan Yasir Irfan Profile: Yasir Irfan
Cisco, Enterprise, Internet, Internet of Things, iot, ISE, NAC, Network, Rapid7, Routers, Security, visibility, VPN, Wireless

Since the introduction of Internet in early 90's to general public, no one ever imagined that Internet will grow so fast, and vast majority of organizations and consumers will be interconnected using the internet. It has expanded exponentially and still its is growing at its greatest speed. The...


October 26, 2016  5:21 AM

Blue Coat Proxy SG Deployment methods – Out of Path Mode

Yasir Irfan Yasir Irfan Profile: Yasir Irfan
Hardware, Network, PAC, Protocols, Proxy, router, Scalability, Switch, virtual

The Out-of-path deployment mode is commonly used when, one cannot bring down the network. Out-of-path deployment happens to be very difficult to manage as one cannot intercept and redirect the internet traffic at network level (like configuring WCCP, PBR or inline deployment). One needs to...


October 24, 2016  6:10 PM

Blue Coat Proxy SG Deployment methods – Virtually Inline Mode

Yasir Irfan Yasir Irfan Profile: Yasir Irfan
firewall, GRE, Hardware, Network, Protocols, Proxy, router, Routing, Scalability, Switch, virtual, WCCP

In Virtually Inline deployment mode, the Proxy SG can be deployed in any network location, it relies on traffic redirection mechanisms like Web Cache Communication Protocol (WCCP) or Policy Based Routing (PBR) to redirect the interesting traffic, such as HTTP /HTTPS to the Proxy SG. WCCP is a Cisco...


October 23, 2016  6:21 PM

Blue Coat Proxy SG Deployment methods – Inline Mode

Yasir Irfan Yasir Irfan Profile: Yasir Irfan
Hardware, Network, Protocols, Proxy, router, Scalability, Switch, virtual

When it comes to deployment of Blue Coat Proxy SG, it offers some flexibility. One can deploy them in either of the below mentioned methods.

  • Physically Inline (Transparent)
  • Out-of-Path or Virtually Inline (Transparent)
  • Explicit
Inline deployment is...


September 17, 2016  6:29 AM

Cisco Router Selector may be your next tool to select the right router

Yasir Irfan Yasir Irfan Profile: Yasir Irfan
Business, Cisco, Functional, Functional requirements, Network, Network design, router, SMB, tool, User experience, virtual

When it comes to designing a network one may need to think from many aspects, one such aspect happens to be the scalability. It’s been observed most of the SMBs rely purely on their team to choose the technology or the product. This fits true especially when they want to upgrade their old router...


November 29, 2015  11:18 AM

Evolving technologies will be part of all CCIE and CCDE Written exams

Yasir Irfan Yasir Irfan Profile: Yasir Irfan
CCIE, Cisco, Cisco Press, cloud, Internet of Things, Network, Network programmability, NFV

Cisco has announced a major revamp for their CCIE  and CCDE written exams, starting July 26,2016 Cisco will include a new section titled "Evolving Technologies". Except CCIE Data Center all other CCIE Lab exams remains intact. So those who will be appearing for CCIE and CCDE  written exam after...


October 12, 2015  7:03 PM

What is transaction lock feature in Palo Alto Networks Firewalls?

Yasir Irfan Yasir Irfan Profile: Yasir Irfan
Administrator, Firewalls, lock, Network, Network Technology, Palo Alto Networks

Palo Alto Networks Firewalls can be administrated by multiple Administrators using WebUI access, it becomes quite challenging to see who is controlling the firewall and making either config changes or committing the changes...


October 8, 2015  6:11 PM

CCDE must read , Series 1 – Review for “Optimal Routing Design”

Yasir Irfan Yasir Irfan Profile: Yasir Irfan
BGP, Cisco certifications, EIGRP, Network, Network design, OSPF, VPN

When it comes to CCDE preparations one should master many concepts, one should refer to plenty of  resources available in  form of books, articles, Cisco validated designs, Videos,RFCs etc.  For every journey there is a starting point, for CCDE I believe 


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