Re: em(4) VLAN + PROMISC still doesn't work with latest CVS version

From: Iasen Kostov (tbyte_at_OTEL.net)
Date: 11/29/04

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    Date: Mon, 29 Nov 2004 13:44:24 +0200
To: Robert Watson <rwatson@freebsd.org>

    Robert Watson wrote:

    >On Sat, 27 Nov 2004, Kevin Day wrote:
    >
    >
    >
    >>I recently upgraded to 5.3 on a system, and manually upgraded
    >>src/sys/dev/em/* to the latest RELENG_5 versions. (1.44.2.4 of if_em.c)
    >>
    >>
    >
    >I'm able to reproduce problems using the below configuration is 6.x also,
    >and am investigating. Thanks for the report, hope to get back to you
    >shortly with something concrete.
    >
    >Robert N M Watson FreeBSD Core Team, TrustedBSD Projects
    >robert@fledge.watson.org Principal Research Scientist, McAfee Research
    >
    >
    >
    >
    >>While the VLAN side of things works better than the stock 5.3 version,
    >>there still is this problem:
    >>
    >>
    >>ifconfig vlan1 create
    >>ifconfig vlan1 vlan 1 vlandev em1 link0
    >>ifconfig vlan2 create
    >>ifconfig vlan2 vlan 2 vlandev em1 link0
    >>ifconfig vlan3 create
    >>ifconfig vlan3 vlan 3 vlandev em1 link0
    >>
    >>ifconfig vlan1 inet 192.aaa.bbb.129 netmask 255.255.255.0
    >>ifconfig vlan2 inet 64.ccc.ddd.61 netmask 255.255.255.192
    >>ifconfig vlan3 inet 64.eee.fff.61 netmask 255.255.255.192
    >>
    >>ifconfig em1 up
    >>ifconfig em1 promisc
    >>
    >>If I do this, vlan1 and vlan3 work fine. Vlan2 can receive packets, but
    >>anything sent out vlan2 doesn't seem to be heard by any foreign hosts.
    >>Setting "ifconfig em1 -promisc" makes all vlans work properly.
    >>
    >>This is better than the stock 5.3 version of em(4) where none of the
    >>vlans worked, but something still isn't right.
    >>
    >>Is this a known problem still or am I just doing something wrong?
    >>
    >>
    >>
    >>
    >>
    >>
    Saddly I can just confirm that :(

        regards

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