Accepted patch #5493 IP frag/reass config item tweak.

src/include/ipv4/lwip/ip_frag.h

@@ -39,19 +39,6 @@
 #include "lwip/netif.h"
 #include "lwip/ip_addr.h"
 
-/* IP reassemly timer interval in milliseconds */
-#define IP_REASS_INTERVAL 1000
-
-/* IP reassemly default age in seconds */
-#ifndef IP_REASS_MAXAGE
-#define IP_REASS_MAXAGE 3
-#endif
-
-/* IP reassembly buffer size (minus IP header) */
-#ifndef IP_REASS_BUFSIZE
-#define IP_REASS_BUFSIZE 5760
-#endif
-
 void ip_frag_init(void);
 void ip_reass_tmr(void);
 struct pbuf * ip_reass(struct pbuf *p);

src/include/lwip/opt.h

@@ -216,6 +216,21 @@ a lot of data that needs to be copied, this should be set high. */
 #define IP_FRAG                         1
 #endif
 
+/* IP reassemly default age in seconds */
+#ifndef IP_REASS_MAXAGE
+#define IP_REASS_MAXAGE 3
+#endif
+
+/* IP reassembly buffer size (minus IP header) */
+#ifndef IP_REASS_BUFSIZE
+#define IP_REASS_BUFSIZE 5760
+#endif
+
+/* Assumed max MTU on any interface for IP frag buffer */
+#ifndef IP_FRAG_MAX_MTU
+#define IP_FRAG_MAX_MTU 1500
+#endif
+
 /** Global default value for Time To Live used by transport layers. */
 #ifndef IP_DEFAULT_TTL
 #define IP_DEFAULT_TTL                  255