Network technologies and trends:

Cisco


November 21, 2017  4:42 AM

Cisco Champions 2018 applications are open  

Yasir Irfan Yasir Irfan Profile: Yasir Irfan
Cisco, communities, social media, technologies, User groups

Cisco runs a program known as Cisco Champions, which purely runs on nominations, one can either nominate himself/ herself or someone whom they see as experts in Cisco Products and Technologies. Cisco expects the potential Cisco Champions to actively share their knowledge, expertise and thoughts in...

November 9, 2017  3:23 AM

What is “TCP Spurious Retransmission” ? And why does this occur for the FTP traffic passing through a Cisco ASA Firewall?

Yasir Irfan Yasir Irfan Profile: Yasir Irfan
ASA, Cisco, Cisco ASA, Filezilla, firewall, FTP, Network security, TCP

Recently we come across an issue where FTP  connection was not established between the client and the FTP server. The connection was passing through the Cisco ASA Firewall. Upon troubleshooting, we discovered 3-way TCP handshake was happening, however, once the login name and password entered to...


June 8, 2017  9:10 AM

Recertifying Cisco expert exams a new twist is here

Yasir Irfan Yasir Irfan Profile: Yasir Irfan
CCIE, Certifications, Cisco

Being a CCIE/CCDE its self is a huge step one would take in his/her life, it's an informed decision one needs to take as maintaining a CCIE/CCDE  is not an easy task. Every two year one needs to recertify his or her CCIE/CCDE either by passing any CCIE written / CCDE written exam or by passing...


April 6, 2017  11:08 AM

Cisco have issues with certain software versions of ASA and Firepower appliances as it drops traffic after 213 days

Yasir Irfan Yasir Irfan Profile: Yasir Irfan
ASA, Blog, bug, Cisco, console, Firewalls, HTTPS, Reboot, Security, SSH, vulnerabilities

Cisco released a field notice and also published a  blog about the latest


March 20, 2017  1:17 PM

How to re-image the Cisco Identity Services Engine (ISE) 2.2 on a Cisco SNS appliance from Cisco Integrated Management Controller?

Yasir Irfan Yasir Irfan Profile: Yasir Irfan
Analytics, application, Cisco, Cisco security, DHCP, end point, End-user, Java, KVM, NAC, Security, Spoofing, threats, vulnerabilities

When it comes to re-imaging the Cisco Identity Services Engine (ISE) 2.2 on a Cisco SNS appliance , one can use the KVM console comes with Cisco Integrated Management Controller. If one wants to re-image the Cisco SNS-3415-K9  appliance  he/she could face huge challenges with the java especially...


March 9, 2017  7:36 AM

What’s new in Cisco Identity Services Engine (ISE) 2.2? – Series 3

Yasir Irfan Yasir Irfan Profile: Yasir Irfan
Analytics, application, Cisco, Cisco security, DHCP, end point, End-user, NAC, Security, Spoofing, threats, vulnerabilities

Cisco Identity Services Engine (ISE) 2.2 does offer lots of new features , in this post we will continue with those features which are focusing on stopping and containing the threats. These new features are quite helpful in reducing risk and contain threats by dynamically controlling network...


March 4, 2017  7:07 PM

What’s new in Cisco Identity Services Engine (ISE) 2.2? – Series 2

Yasir Irfan Yasir Irfan Profile: Yasir Irfan
802.1x, anti--spyware, Anti-virus, application, Applications, BYOD, Cisco, Cisco security, end point, End-user, P2P, Patch management, Program, Security, visibility, Wireless

Cisco Identity Services Engine (ISE) 2.2 comes with lots of new features, in our previous post we did discussed about


March 3, 2017  9:30 PM

What is an error “Subtype:Encrypt Result:Drop” in Cisco ASA Firewalls?

Yasir Irfan Yasir Irfan Profile: Yasir Irfan
ACL, ASA, Cisco, Cisco ASA, DROP, firewall, Packet Tracer, Routers, Security, VPN, VPN Tunnel

After building a site to site VPN tunnel between Cisco ASA and any other firewall or router, often the tunnel is tested using the packet-tracer command in Cisco ASA firewall. While running a packet tracer when one sees an error "Subtype:Encrypt Result:Drop" as shown below

Phase:...


February 17, 2017  12:10 PM

What’s new in Cisco Identity Services Engine (ISE) 2.2? – Series 1

Yasir Irfan Yasir Irfan Profile: Yasir Irfan
application, Cisco, Cisco security, end point, End-user, Security

The recent launch of Cisco Identity Services Engine (ISE) 2.2 has increased more visibility and also lots of new features are added. Some of the new enhancements one could see with Cisco Identity Services Engine (ISE) 2.2  are:


February 13, 2017  6:28 PM

What is Cisco Champion program?

Yasir Irfan Yasir Irfan Profile: Yasir Irfan
Blogging, Cisco, Cisco Systems, Collaboration, data-centre, Internet of Things, iot, Networks, news, radio, Security

After being selected as Cisco Champion 2017, often people asked what is Cisco Champion? Some of them don’t know what Cisco Champion Program offers and what benefits they can avail...


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