[lwip-devel] [bug #27049] DHCP IP address assignment with multiple lwIP devices fails

[Jakob Stoklund Olesen]

Follow-up Comment #11, bug #27049 (project lwip):

I think the proper solution would be to reuse XID for retransmissions. This
is perfectly OK according to RFC2131.

In dhcp_create_request() only increment xid when dhcp->tries==0:


  /* give unique transaction identifier to this request */
  if (dhcp->tries==0) xid++;
  dhcp->xid = xid;


In dhcp_select() and dhcp_discover() call dhcp_set_state() before calling
dhcp_create_request().

Bill, could you try this, please?


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