[lwip-users] BootP

[Bill Lawson]

Hello Everyone,

   I've got a project that needs to be able to use Static IP, DHCP, and 
BootP for network configuration.  Static IP and DHCP are fine, but I'm 
having some trouble getting BootP working.  I should make it clear that 
I'm only using BootP for configuration, I don't need to get a boot file, 
just the first packet with the IP address in it.

   I can create a BootP request and send it to the server.  The server 
sees that packet and sends a reply.  I can see the reply being sent via 
Ethereal.  The problem is that I never receive the reply packet in my 
application.  From what I've been able to figure out lwIP is seeing the 
packet, and since DHCP is enabled the packet is being sent to the DHCP 
functions, which throw it away because it hasn't made a DHCP request.  
If I disable DHCP the packet is thrown away because the interface in 
unconfigured and therefore the packet couldn't be for us.

   Can  anyone tell me what I need to modify in the lwIP source to be 
able to send this packet on to my application so I can proceed with 
configuration?  If anyone knows of some sort of work-around that doesn't 
involve modifying the lwIP source that would be an acceptable solution 
as well.

   If anyone needs more information (Ethereal dump, etc) let me know 
and I can provide it.  Thank you for your assistance.

--Bill Lawson