On Thu, Feb 05, 2004 at 04:49:26PM -0800, Brooks Davis wrote: > On Thu, Feb 05, 2004 at 04:31:12PM -0800, mrcpu_at_cdsnet.net wrote: > > Well, I'm just looking through the specs of the microtik stuff, and they > > say they have vlan support over wireless now. > > > > I can fudge the VLAn support, at the cost of a reduced MTU using the > > "software emulation" vlan tagging, or whatever it is that FreeBSD does, > > and bridge those packets, but that's not the same as true hardware VLAN > > tagging. > > You've got a serious misconception about how vlans work. The only > hardware support that is required is support for a wire MTU of 1504 > bytes so the tag fits on the packet without reducing payload size. Some > interfaces have support for removing the tag from the packet for you and > indicating the tag out of band, but that's only an optimization. > I think the originator is asking why IFCAP_VLAN_MTU is not set by the ath(4) driver (I've only checked with grep(1)), is it due to a hardware limitation, or due to the driver? Cheers, -- Ruslan Ermilov FreeBSD committer ru_at_FreeBSD.org
This archive was generated by hypermail 2.4.0 : Wed May 19 2021 - 11:37:41 UTC