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 ...

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 ...

Five things you should know about configuring a Cisco IOS switch Your email has been sent Once you're ready to make the jump to a more sophisticated switch, what do you need to know? Let's answer some ...

We have a pair of Cisco switches which are connected together and a pair of Cisco 7200 routers.<BR><BR>Currently we only connect router1 to switch1 and router2 to switch2.<BR><BR>What I want to ...

Here’s a guest post sent to me by Don Crawley, author of The Accidental Administrator book series. It is an excerpt from his latest:The Accidental Administrator: Cisco ASA Security Appliance: A ...

Virtual LANs (VLANs) allow the segmentation of a physical network into multiple logical networks. VLAN trunking is the process of transporting multiple VLANs over a single network link—typically ...