DHCP-relays both tagged & un-tagged frames.

[Peter Rathlev]

On Tue, 2014-03-18 at 18:28 +0530, Shanthosh Krishna Moorthy wrote:
> The behavior described in the following thread remains the same even
> in the recent versions:
> 
> https://lists.isc.org/pipermail/dhcp-users/2008-November/007402.html
>  
> Has any one found a workaround? If this is going to involve
> fundamental changes to the kernel is this being considered?

The problem is the way ISC DHCPd listen on the interface, it uses a raw
socket. There's a knowledge base article describing it here:

https://deepthought.isc.org/article/AA-00379/0/How-DHCP-uses-raw-sockets.html

You should be able to use "--enable-use-sockets" to get around this
limitation but it has its own drawbacks.

-- 
Peter