David Vielmetter

Tag: Virtual LAN

  • Create a virtual router to provide Internet access to a virtual LAN

    In this tutorial, I’ll be talking about connecting a virtual LAN network created using VirtualBox to a physical LAN segment with Internet access. The reason for this tutorial is to demonstrate that it is possible to create a virtual environment that closely mimics a production company LAN network in functionality. This includes being able to…

  • Restrict client DHCP requests using DHCP snoop

    What do you get when a multi-site network with several different domains was setup using a single class C IP subnet and an 8 bit mask? Broadcast storm mayhem! While ideally the solution for this organization would be to logically re-segment their network into smaller domain specific subnets such that inter-domain communications are not broadcast…