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Old 27th June 2008
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ai-danno ai-danno is offline
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Assigning a VLAN to ports in a switch and tagging frames coming over a particular port on a switch are two different things. The switchport the OBSD box connects on can belong to a single VLAN that has an assigned ID but not have any knowledge of that VLAN ID itself. Only if the OBSD box needs to talk to other hosts off the switch within their specific L2 domains (as opposed to talking to them via the local router) will you need to enable trunking on both the switchport that the OBSD box connects on and the NIC of the OBSD box itself. That's where trunking of the ports becomes necessary- when the OBSd box will be communicating directly with multiple VLANs instead of routing that traffic via the local router.

If I'm not mistaken setting trunking on the OBSD box isn't dependent on the specific NIC on the OBSD box, it's done in the OS of the OBSD box itself (as long as the NIC supports trunking, which all modern NIC's should.)
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