ng_fec and vlan

[Giulio Ferro]

I've tried (without too much effort, I admit...) to create vlan interfaces
using a fec device as parent.
It was something like this:

...
fec_interfaces="fec0"
fecconfig_fec0="re1 re2"
ifconfig_fec0="inet 192.168.0.1 netmask 255.255.255.0"
...
cloned_interfaces="vlan1 vlan2 vlan3 ..."
ifconfig_vlan1="inet 192.168.1.1 netmask 255.255.255.0 vlan 1 vlandev fec0"
ifconfig_vlan2="inet 192.168.2.1 netmask 255.255.255.0 vlan 2 vlandev fec0"
ifconfig_vlan3="inet 192.168.3.1 netmask 255.255.255.0 vlan 3 vlandev fec0"
...

freebsd 7 stable (recent) amd64

Result: I see the vlan interfaces up and active, but they neither 
transmit nor
receive. By using tcpdump on the vlan ifaces I can see the arp packets 
leaving
when I try to ping a host on the same vlan, but they are unanswered.

The switch has been configured correctly, since the same vlans work
using either re1 or re2 as parent.

Any idea?