Can anybody give me a step by step guide for setting up multiple VLANs on a Cisco 1841 modular router? I can't find anything to help me through my problem, which, incidentally, is that I can create ...

I'm using Cisco 3550 & 3560 switches for WAN routing with enhanced IP images. They are connected to Microwave radios of various speeds (45Mb, 100Mb, 622Mb) depending on the link. I setup VLAN's to ...

A virtual LAN is a logical division of a network that enables devices to communicate as if they are connected to a single switch. These divisions are critical to network security, performance and ...

These common VLAN missteps can undermine your network security and performance. Discover the pitfalls to avoid.

In Cisco LAN switch environments, the native VLAN is typically untagged on 802.1Q trunk ports. This can lead to a security vulnerability in your network environment. It is a best practice to ...

There are thousands of commands and subcommands available to configure a Cisco Adaptive Security Appliance, and as you gain knowledge of the appliance, you will find yourself using more and more of ...

A virtual LAN (VLAN) is a logical overlay network that groups together a subset of devices that share a physical LAN, isolating the traffic for each group. A LAN is a group of computers or other ...