6.0-BETA3 bge0 and vlans

Jung-uk Kim jkim at FreeBSD.org
Tue Aug 30 18:22:52 GMT 2005

On Tuesday 30 August 2005 01:23 pm, Gavin Atkinson wrote:
> Hi,
> I'm having no success setting vlans up on a bge interface.  Can
> anyone confirm they work?  I've got no problems using them on fxp
> interfaces, so I'm pretty sure it's not user error...  Everything
> looks good:
>         options=1a<TXCSUM,VLAN_MTU,VLAN_HWTAGGING>
>         inet6 fe80::209:3dff:fe12:6c06%bge0 prefixlen 64 scopeid
> 0x1 inet x.y.12.120 netmask 0xfffffe00 broadcast x.y.13.255 ether
> 00:09:3d:12:6c:06
>         media: Ethernet autoselect (100baseTX <full-duplex>)
>         status: active
> [bge1/lo0 snipped]
> vlan76: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
>         inet x.y.76.59 netmask 0xfffffe00 broadcast x.y.77.255
>         inet6 fe80::209:3dff:fe12:6c06%vlan0 prefixlen 64 scopeid
> 0x4 ether 00:09:3d:12:6c:06
>         media: Ethernet autoselect (100baseTX <full-duplex>)
>         status: active
>         vlan: 76 parent interface: bge0
> ... but I can get no packets through the vlan interface (the parent
> interface works as expected).  Can anyone actually confirm that
> vlans work with bge cards?  My card is a BCM5704 (vend=0x14e4,
> prod=0x1648, rev=0x03)

It was discussed here but I don't think any actions were taken 
actually.  Follow the thread:


Jung-uk Kim

> I've also just discovered that ifconfig is sensitive to the order
> that the options "vlandev" and "vlan" are passed to it.
> wiggum# ifconfig vlan76 vlandev bge0 vlan 76
> ifconfig: must specify both vlan tag and device
> wiggum# ifconfig vlan76 vlan 76 vlandev bge0
> wiggum#
> This to me seems counter-intuitive.  Due to the design of ifconfig
> this doesn't seem to be easy to change, so maybe it should be
> documented?
> Thanks,
> Gavin
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