Looking for a new Linux router. Buffalo AirStation?

Ben Scott dragonhawk at gmail.com
Sun Aug 5 22:10:21 EDT 2012


On Sun, Aug 5, 2012 at 9:36 PM, Joshua Judson Rosen
<rozzin at geekspace.com> wrote:
> Will the device do 3 separate networks without the need for vlan tagging,
> though?

  VLAN tagging is how pretty much all devices are going to implement
this.  You really don't want to do anything else -- router ports are
more expensive than switch ports.  With a managed switch, the VLANs
all happen behind the scenes.  Outside devices just think they're
talking to a regular switch.

  For these SOHO devices, the internal switch ASIC removes the tags
before emitting frames.    Likewise, when a frame is received, the
switch adds the tags for the benefit of the embedded computer.

  Although I haven't tested to see what happens if a frame with a tag
already present hits the switch in one of these things.  A proper
managed switch will let you configure the behavior for that scenario
(e.g., drop the frame), but these things are more like "managed switch
lite".

-- Ben


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