Network technologies and trends:

Troubleshooting

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March 30, 2017  5:19 AM

Cisco ASA VPN troubleshooting  – Decaps but No encaps

Yasir Irfan Yasir Irfan Profile: Yasir Irfan
ASA, bug, Cisco ASA, Cisco VPN, firewall, NAT, Palo Alto Networks, Policies, Proxy, Troubleshooting, tunnel, VPN

Recently we observed a strange issue while building a site to site VPN tunnel between a Cisco ASA [9.1( 5) ] and Palo Alto Next Generation firewall.(PAN-OS 7.0.9) It was observed always phase 1 part of tunnel established successfully with peer however phase 2 failed to come up. Always we were...

September 19, 2015  4:43 PM

Palo Alto Networks Firewall Configuration Management Auditing

Yasir Irfan Yasir Irfan Profile: Yasir Irfan
Auditing, Configuration management, firewall, router, Troubleshooting

Palo Alto Network Firewall offers configuration-auditing feature, using this feature one can compare any two configuration files and see the difference. Palo Alto firewalls after comparing any two configuration files, highlights the differences using color coding schemes. Following color codes are...


July 7, 2015  9:24 PM

What is VCP-NV – Series 2?

Yasir Irfan Yasir Irfan Profile: Yasir Irfan
Auditing, Automation, DHCP, DNS, Firewalls, Load balancers, logging, Monitoring, NAT, Routers, Troubleshooting, VMware, VMware certifications, VPNs

When it comes for the VCP-NV certification preparations, one can certainly rely on VMware, as they have plenty of great resources. In may case I extensively used the following


July 6, 2015  11:42 PM

What is VCP-NV – Series 1?

Yasir Irfan Yasir Irfan Profile: Yasir Irfan
Auditing, Automation, DHCP, DNS, Firewalls, Load balancers, logging, Monitoring, NAT, Routers, Troubleshooting, VMware, VMware certifications, VPNs

Recently I tested my skills and knowledge on VMware Certifications, VMware Certified Professional – Network Virtualization also known as VCP-NV, which focuses on NSX products. The VCP-NV certification validates ability to install, configure, and administer NSX virtual networking...


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