On Thu, Dec 13, 2007 at 02:47:06PM -0800, Xin Huang wrote: > Thanks for the answer. The switch is the DHCP server. Ok. > But that's not the problem. Seems to me that it is. > 1. "DHCP Request" is sent out from "eth0.0" of a Linux box. It's a > VLAN tagged packet with VID set to 0. Fine so far. > 2. "DHCP Offer" is sent back from the switch and received by Linux. > It's a regular Ethernet packet without any VLAN tag. So this is the problem. And there is nothing Linux can do about this. I would investigate if the switch that you are using can indeed be used the way you want. //Peter _______________________________________________ Vlan mailing list Vlan@xxxxxxxxxxxxxxx http://www.candelatech.com/mailman/listinfo/vlan