Date: Tue, 23 Nov 2004 03:31:04 +0200 From: Iasen Kostov <tbyte@OTEL.net> To: freebsd-hackers@freebsd.org Subject: setting promisc mode kills vlans on devices with hwtagging (em, re ...) Message-ID: <41A292D8.4050904@OTEL.net>
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Hi,
if you setup a vlan devices with parent one of emX or reX (this what I
have at the moment)
which has hardware vlan tagging just try to run tcpdump (without -p) and
the vlans will
die :). That doesn't happen with parent devices not supporting
hwtagging. And this totally
excludes possibility to run a bridge over vlans with parent device which
support hwtaggs.
And something else was observed with re driver - it is impossible to
disable hwtaggs by
-vlanhwtag neither you can disable vlan mtu :).
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