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BGP Routing Protocol Tips You Need to Know
Perhaps you are thinking that you could care less about some routing protocol called BGP. Could it possibly have anything to do with your everyday life? The answer is yes….
How to Configure Static NAT for Inbound Connections?
Someone recently asked me how to configure Network Address Translation (NAT) so that computers on the Internet could access his internal Web and mail server through his Cisco router. This…
What’s the Order of Operations for Cisco IOS?
“What’s the order in which IOS processes the running config between the following items? ACL Distrubute list, Route map Routing Protocol Routing What im looking for is the packet flow…
How to Configure Dual ISP on Cisco ASA 5505?
This is article that explains how to configure dual ISPs on a Cisco ASA 5505 firewall for redundancy purpose. Suppose we have a primary high-speed ISP connection, and a cheaper DSL line connected…
Basic Information of Configuring HSRP on a Cisco Router
Hot Standby Routing Protocol or HSRP, is a Cisco proprietary protocol that allows two or more routers to work together to represent a single IP address for a particular network….
What the Main Difference between HSRP, VRRP and GLBP Protocols
In this article we will cover comparison of various first hop redundancy protocols. HSRP, VRRP and GLBP are the main three first hop redundancy protocols. In order to take the right decision…
Video to Show Private VLANs & Configure PVLANs on A Cisco Switch
In this video (from YouTube), Keith Barker will explain the concept of private VLANs and then demonstrates how to configure them on a Cisco switch. This video show is very…
Five Things You Should Know About DHCP Snooping
DHCP snooping allows the switch to monitor and control DHCP messages received from untrusted devices connected to the switch. When DHCP snooping is enabled, the system builds and maintains a…
How to Configure OSPF on Cisco Routers?
OSPF (Open Shortest Path First) is a routing protocol developed by Internet Engineering Task Force (IETF). OSPF is standards-based which means it is available on routers by Cisco as well…
Cisco ASA 8.4 vs. Typical NAT/PAT Configuration
In computer networking, network address translation (NAT) is the process of modifying IP address information in IP packet headers while in transit across a traffic routing device. Here we will…
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