Switchport Security & Configuration

One of the most overlooked security areas is the configuration of individual switchport security configuration. The reason may be that it requires a more granular configuration; this is because a typical configuration requires the knowledge of the specific MAC address(es)…
NAC Appliances: Shortcut to Access Control

To share a article about NAC Appliances From http://searchnetworking.techtarget.com/feature/NAC-appliances-Shortcut-to-access-control Infrastructures that check endpoint health before network access have generated plenty of buzz, but precious little deployment. Some companies are waiting for a winner to emerge from the chief contenders: Cisco’s Network Admission…
How to Configure Dynamic DNS on a Cisco Router?

The Internet uses IP addresses to refer to all resources but IP addresses are difficult to remember for humans. We instead use easy-to-remember domain names such as www.router-switch.com to refer to Internet resources. DNS (Domain Name System) is the Internet directory…
DHCP Option 150 & DHCP Option 66

Here we will provide an understanding for configuring option 150 and to use option 66 for EX Switches. DHCP Option 150 is Cisco proprietary. Option 66 is an IEEE standard. PROBLEM OR GOAL: Solution: For Cisco phones IP addresses can…