--- linux/drivers/net/au1000_eth.c.orig	2004-11-18 13:44:52.163605416 +0100
+++ linux/drivers/net/au1000_eth.c	2004-11-18 13:51:42.096286176 +0100
@@ -1389,6 +1389,7 @@
 		control |= MAC_FULL_DUPLEX;
 	}
 	aup->mac->control = control;
+	aup->mac->vlan1_tag = 0x8100; /* activate vlan support */
 	au_sync();
 
 	spin_unlock_irqrestore(&aup->lock, flags);