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

[Iasen Kostov]

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 at 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