em0, VLAN and bpf(?) trouble w/RELENG_5

[Mike Tancsa]

At 02:44 PM 08/11/2004, astesin at ukrtelecom.net wrote:
>Also my collegue reported, that vlan0 link has problem with transporting
>long (> MTU, which is set to 1500) packets. He also reminded me that the
>very same kind of problem was fixed some time ago in Linux driver for same
>hardware.


If you do
ifconfig em0

what options does it show ?

# ifconfig em0
em0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
         options=1b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING>
         inet 10.1.1.2 netmask 0xfffffffc broadcast 10.1.1.3
         ether 00:01:80:54:b8:df
         media: Ethernet autoselect (1000baseTX <full-duplex>)
         status: active
#

Is vlan_mtu there ?  Also, when you create the vlan interface, what options 
do you use to create it ?

I am using 5.3-STABLE FreeBSD 5.3-STABLE #1: Tue Nov  9 13:11:18 EST 
2004  and it works with large frames.

         ---Mike