Tag Archives | switching

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War Stories: Cursed VLANs

I’ve written before about switch ports being permanently disabled. This time it’s something new to me: VLANs that refuse to forward frames. A Simple Network The network was pretty straightforward. A pair of firewalls connecting through a pair of switches to a pair of routers: Sub-interfaces were used on the routers and firewalls, with trunks […]

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