The CCSP certification has CCNA Security as a prerequisite, so you can’t start without that one. Then you need to take 4 more exams, 3 of them are fixed and the last…
Category: CCSP Articles
CCSP Articles
How to configure IOS Zone-Based Firewall
Cisco introduced IOS Zone-Based Firewalling (ZFW) in Cisco IOS 12.4(6)T. Cisco announced that their strategic direction for IOS firewalling is going to be with Zone-Based Firewalling. They will continue to support Classic…
How to Configure the IOS HTTP Application Firewall
Configuring a new feature, the IOS HTTP Application Firewall, can further enhance the Cisco IOS Classic Firewall. HTTP uses TCP port 80 to transport Internet web services, which are commonly used on…
How to Configure the IOS Classic Firewall
The Cisco IOS Classic Firewall implements stateful inspection of traffic flow through the router. The router intercepts packets that it has been configured to intercept, and tracks the state of the packets…
Summary of Cisco IOS Firewall
IOS Firewall is firewall functionality that is included within specific feature licenses of the Cisco IOS. Cisco IOS is the operating system that most Cisco devices operate. All routers, including the new…
Simple configuration of Context-Based Access Control
Technical characteristics: 1. Traffic filtering CBAC checks not only the information of the network layer and the transport layer but also the information of the application layer. It can also filter the…
Few Words – IP Prefix Lists
Ip prefix-list provides the most powerful prefix based filtering mechanism Here is a quick little tutorial on Prefix-lists for you. A normal access-list CANNOT check the subnet mask of a network. It…
How to configure reflexive access lists
This post describes how to configure reflexive access lists on your router. Reflexive access lists provide the ability to filter network traffic at a router, based on IP upper-layer protocol "session" information….
VPN Virtual Tunnel Interfaces
While doing a recent deployment, I ran across this concept. It’s a slightly different way to configure VPNs on a Cisco router that (for me) is far less confusing and finicky. If…