From 57e7d7dd2a0da8dea923c1bad6d42b400169cfb4 Mon Sep 17 00:00:00 2001
From: logicog <git@logicog.de>
Date: Wed, 31 Dec 2025 19:50:38 +0100
Subject: [PATCH] Do not drop DHCP packets for a DHCP-server

---
 uip/uip.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/uip/uip.c b/uip/uip.c
index 6240504..6f184db 100644
--- a/uip/uip.c
+++ b/uip/uip.c
@@ -919,7 +919,7 @@ uip_process(u8_t flag) __banked
     
     /* Check if we have a DHCP packet, otherwise check if the packet is destined for our IP address. */
 #if !UIP_CONF_IPV6
-    if(!(BUF->proto == UIP_PROTO_UDP && UDPBUF->destport == HTONS(DHCP_CLIENT_PORT))) {
+    if(!(BUF->proto == UIP_PROTO_UDP && (UDPBUF->destport == HTONS(DHCP_CLIENT_PORT) || UDPBUF->destport == HTONS(DHCP_SERVER_PORT)) )) {
       if(!uip_ipaddr_cmpx(BUF->destipaddr, uip_hostaddr)) {
         UIP_STAT(++uip_stat.ip.drop);
         goto drop;