[Soekris] net5501 VLAN creating MTU problems

[Lonnie Abelbeck]

My goal today was to upgrade m0n0wall running on a net4801 with a  
shiny new net5501.

I installed the generic-pc-1.231 (FreeBSD 4.11) on the net5501,  
replaced every "sis" with "vr" to create my new config.xml .

vr0 - untagged LAN
vr1 - untagged WAN
vr2 - tagged VOIP, WLAN, OVPN, VLAN1 and XTRA
vr3 - empty

Long story short, it appears that VLAN "long frames" are not being  
used in the "vr" driver with m0n0wall.  It appears I am having MTU  
issues, ping's work everywhere, but large http's stall when tagged to  
untagged interfaces are used, tagged to tagged work fine.  UDP  
traffic is fine.

I tried m0n0wall 1.3b4 (FreeBSD 6.2) , same MTU issues.

If I try exec.php "ifconfig vr2 vlanhwtag" I get 'Invalid Keyword'

Any suggestions to enable long frames in the "vr" driver and solve  
the MTU issues?

Does FreeBSD or Linux support VLAN  'long frames' properly on the  
net5501?

Regards,
Lonnie