Network technologies and trends:

IP address


February 29, 2016  12:07 PM

How does Palo Alto Firewall identify an App?

Yasir Irfan Yasir Irfan Profile: Yasir Irfan
app, application, ASA, BGP, Cisco, firewall, HTTP, IP address, Network design, OSPF, Routing, Signatures, Technology

When it comes to identifying an application  Palo Alto Firewall is quite accurate and yield great results in either allowing or dropping the traffic based on security policy applied.  I believe App-ID is the strongest point of Palo Alto Firewalls and it makes them leaders in the Next Generation...

May 30, 2015  8:05 AM

How to Configure uRPF in Strict Mode?

Yasir Irfan Yasir Irfan Profile: Yasir Irfan
Cisco IOS, Cisco security, IP address, router, Topology

In this post lets configure uRPF in Strict mode, I have created the below topology using Cisco VIRL, a great tool to test many things. 0 Comments     RSS Feed     Email a friend

May 26, 2015  4:52 AM

What Is uRPF?

Yasir Irfan Yasir Irfan Profile: Yasir Irfan
IP, IP address, IP packets, RFC, Routers, Routing Table

uRPF also known as Unicast Reverse Path Forwarding is a great security feature found in Cisco IOS Router and ASA Firewalls which is used to limit the malicious traffic on an enterprise network. Generally when a router receive a unicast IP Packet, the routers cares only about the destination IP...

August 16, 2008  11:12 AM

How to change an IP address in a HP Procurve Switch

Yasir Irfan Yasir Irfan Profile: Yasir Irfan
HP ProCurve, IP address

Changing an IP address in a Cisco Switch is quite simple, where as in HP Procurve Switches if you try to change an IP address for any existing VLAN you get an error message: The IP address (or subnet) already exists.. I will demonstrate how to change an IP address for an existing...


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