What happens Same IP Range different subnet mask
I had this question posed to me the other day and it is one of those curiosity questions that you may have asked before or perhaps had a situation that…
Category: Networking
VIRL vs GNS3 vs Packet Tracer which one
Network simulators are a great resources for mocking up certain scenarios, learning, certifications, and plain old “what will happen if I do this in my network” testing. There are are…
Troubleshooting VMware Workstation Network connectivity
Typically, I use VMware Workstation every day running work VMs and performing other testing. I also troubleshoot VMware Workstation for other users as well. From time to time, I have…
Configure Dell Nseries switch stack
A quick little how to post on creating a stack between Dell Nseries switches. For the purposes of this post, the stack was created using (2) Dell Nseries 4032F 10G…
How to Configure Untangle site to site VPN
In working on a DR project utilizing two Untangle virtual appliances, I had the need to setup a site to site VPN connection between the Untangle firewalls. The OpenVPN documentation…
Create LACP LAG between Extreme and Enterasys switches
A late breaking project I was involved with recently with a client was adding 10G port count to an environment that had simply outgrown the number of 10G ports that were…
Cisco Meraki MR18 install review
I was excited recently to get my hands on a Cisco Meraki MR18 and wanted to share with you all some thoughts and opinions of the product after having installed,…
Stretch layer 2 with OTV
Lately, in looking at different ways to stretch layer 2 with various technologies, I have been proof of concepting various ways to do this in router labs. In a recent post…
Stretch VLANs across routers L2TPv3
Recently, I have been working a good bit with DR network connectivity and other DR DCI concerns. A typical scenario today has a virtual environment in one Site as production…
TCP Auto-tuning slow network performance
Starting with Windows Vista, there were improvements made to the network stack including a little known feature called TCP Window Auto-tuning. The auto-tuning feature allows newer versions of Windows to…
