From 12fd5592447b41c940c959f2df67de2baa42cb4d Mon Sep 17 00:00:00 2001
From: Oliver Schmidt <ol.sc@web.de>
Date: Tue, 25 Aug 2015 16:24:37 +0200
Subject: [PATCH] Fixed DHCP client.

RFC2131 states on page 36 regarding DHCPREQUEST: " 'xid' from server DHCPOFFER message "

As the DHCPOFFER message uses the 'xid' from the DHCPDISCOVER message this means that the DHCP client is supposed to re-use the 'xid' from its DHCPDISCOVER for the DHCPREQUEST.
---
 core/net/ip/dhcpc.c        | 2 --
 core/net/ip64/ip64-dhcpc.c | 2 --
 2 files changed, 4 deletions(-)

diff --git a/core/net/ip/dhcpc.c b/core/net/ip/dhcpc.c
index 46ba826da..08023f1e4 100644
--- a/core/net/ip/dhcpc.c
+++ b/core/net/ip/dhcpc.c
@@ -300,7 +300,6 @@ PT_THREAD(handle_dhcp(process_event_t ev, void *data))
   }
   
  selecting:
-  xid++;
   s.ticks = CLOCK_SECOND;
   do {
     while(ev != tcpip_event) {
@@ -366,7 +365,6 @@ PT_THREAD(handle_dhcp(process_event_t ev, void *data))
   }
 
   /* renewing: */
-  xid++;
   do {
     while(ev != tcpip_event) {
       tcpip_poll_udp(s.conn);
diff --git a/core/net/ip64/ip64-dhcpc.c b/core/net/ip64/ip64-dhcpc.c
index fdb1dd0ec..1ed3ac249 100644
--- a/core/net/ip64/ip64-dhcpc.c
+++ b/core/net/ip64/ip64-dhcpc.c
@@ -308,7 +308,6 @@ PT_THREAD(handle_dhcp(process_event_t ev, void *data))
   }
   
  selecting:
-  xid++;
   s.ticks = CLOCK_SECOND;
   do {
     while(ev != tcpip_event) {
@@ -374,7 +373,6 @@ PT_THREAD(handle_dhcp(process_event_t ev, void *data))
   }
 
   /* renewing: */
-  xid++;
   do {
     while(ev != tcpip_event) {
       tcpip_poll_udp(s.conn);