From 3048126ff1e5f0d2e5d4125e6fda32386bc84150 Mon Sep 17 00:00:00 2001
From: Matthias Kovatsch <kovatsch@inf.ethz.ch>
Date: Wed, 19 Jun 2013 14:45:57 +0200
Subject: [PATCH] Limited observe clock to 24 bits.

---
 apps/er-coap-13/er-coap-13.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/apps/er-coap-13/er-coap-13.c b/apps/er-coap-13/er-coap-13.c
index 8f474730a..8755e940c 100644
--- a/apps/er-coap-13/er-coap-13.c
+++ b/apps/er-coap-13/er-coap-13.c
@@ -1013,7 +1013,7 @@ coap_set_header_observe(void *packet, uint32_t observe)
 {
   coap_packet_t *const coap_pkt = (coap_packet_t *) packet;
 
-  coap_pkt->observe = observe;
+  coap_pkt->observe = 0x00FFFFFF & observe;
   SET_OPTION(coap_pkt, COAP_OPTION_OBSERVE);
   return 1;
 }