VLAN Tagging on a Switch — How to Create and Assign VLANs
How 802.1Q tagging works, creating VLANs, assigning access ports, configuring trunks, and the allowed-VLAN trap that takes trunks down. Full…
Switching Home / Category: Switching
Category: Switching
Switching 
Switching How to Copy an IOS Image to a Cisco Switch or Router
Copying an IOS image via TFTP, USB or SCP, verifying the MD5 hash, setting the boot variable, and recovering a…
Switching Guest WiFi VLAN — How to Isolate Guests on a Switch and Router
Put guest WiFi on its own VLAN so guests reach the internet and nothing else. Full switch, SVI and ACL…
Switching Native VLAN — What It Is, How to Configure It and the Security Risk
The native VLAN is the one VLAN sent untagged on an 802.1Q trunk. Why it exists, how to change it,…
Switching What is an ARP? Detail Explained
What is an ARP? ARP (Address Resolution Protocol) is a protocol for mapping an IP address to a physical machine…