I have a weird thing ... as usual. I have a Cisco UCS system with the normal fabric interconnect setup (2 x 6248UP connected to a chassis with 2 x 2208xp fabric extenders), running the latest 4.x ...

Threat actors exploited a recently patched remote code execution vulnerability (CVE-2025-20352) in Cisco networking devices ...

For the benefit of people that want to choose an ISP for UFB, and already have a router that may not support VLAN tagging, I've decided to maintain a list of the various ISP requirements.

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 ...

It's no surprise that Linux makes a great router and firewall. A lesser-known fact is that you also can use Linux as an Ethernet bridge and VLAN switch, and that these features are similarly powerful, ...

Well, I've managed to get my company to split the cost on an Aruba 1930 24POE switch. So I'm diving into the manual to read how to configure VLANs, Layer 3 routing, and trunking. Oh, wait, a trunk is ...

Once your home network grows a little more complex, you soon realize that grouping devices into virtual local area networks (VLANs) makes a lot of sense, both from a security and administrative ...