Subject: Re: 802.1Q & ETHER_MAX_LEN
To: None <>
From: Jason R Thorpe <>
List: tech-net
Date: 10/03/2000 15:57:27
On Wed, Oct 04, 2000 at 06:58:43AM +0900, wrote:

 > 	I think bpf will choke with non-14byte encapsulation on
 > 	DLT_EN10MB.  I think we should inject:
 > 	- 18byte header (as is) on parent interface
 > 	- 14byte header on vlan interface (need to create one)
 > 	into bpf.

This already works okay:

	- VLAN decaps before passing to bpf, so you get 14-byte header.
	- Phys interface sees dhost,shost,ethertype_vlan, is you get
	  a 14-byte header.

        -- Jason R. Thorpe <>