diff --git a/CHANGELOG b/CHANGELOG
index 1681f0ca..d9329c1d 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -145,6 +145,20 @@ HISTORY
 
  ++ Bugfixes:
 
+  2014-01-16: Stathis Voukelatos
+  * netif.c: patch #7902 Fixed netif_poll() operation when LWIP_LOOPBACK_MAX_PBUFS > 0
+
+  2014-01-14: "Freddie Chopin"
+  * snmp.h, mib2.c: fixed constness and spelling of sysdescr
+
+  2014-01-14: Simon Goldschmidt (patch by Thomas Faber)
+  * tcpip.c: patch #8241: Fix implicit declaration of ip_input with
+    LWIP_TCPIP_CORE_LOCKING_INPUT disabled
+
+  2014-01-14: chrysn
+  * timers.c: patch #8244 make timeouts usable reliably from outside of the
+    timeout routine
+
   2014-01-10: Simon Goldschmidt
   * ip_frag.c, ip6_frag.c: fixed bug #41041 Potential use-after-free in IPv6 reassembly
 
diff --git a/src/api/tcpip.c b/src/api/tcpip.c
index 72794f12..1c5209e8 100644
--- a/src/api/tcpip.c
+++ b/src/api/tcpip.c
@@ -46,6 +46,7 @@
 #include "lwip/pbuf.h"
 #include "lwip/tcpip.h"
 #include "lwip/init.h"
+#include "lwip/ip.h"
 #include "netif/etharp.h"
 #include "netif/ppp/pppoe.h"
 
diff --git a/src/core/netif.c b/src/core/netif.c
index e7a87c3c..068c3e5d 100644
--- a/src/core/netif.c
+++ b/src/core/netif.c
@@ -769,16 +769,22 @@ netif_poll(struct netif *netif)
     if (in != NULL) {
       struct pbuf *in_end = in;
 #if LWIP_LOOPBACK_MAX_PBUFS
-      u8_t clen = pbuf_clen(in);
+      u8_t clen = 1;
+#endif /* LWIP_LOOPBACK_MAX_PBUFS */
+      while (in_end->len != in_end->tot_len) {
+        LWIP_ASSERT("bogus pbuf: len != tot_len but next == NULL!", in_end->next != NULL);
+        in_end = in_end->next;
+#if LWIP_LOOPBACK_MAX_PBUFS
+        clen++;
+#endif /* LWIP_LOOPBACK_MAX_PBUFS */
+      }
+#if LWIP_LOOPBACK_MAX_PBUFS
       /* adjust the number of pbufs on queue */
       LWIP_ASSERT("netif->loop_cnt_current underflow",
         ((netif->loop_cnt_current - clen) < netif->loop_cnt_current));
       netif->loop_cnt_current -= clen;
 #endif /* LWIP_LOOPBACK_MAX_PBUFS */
-      while (in_end->len != in_end->tot_len) {
-        LWIP_ASSERT("bogus pbuf: len != tot_len but next == NULL!", in_end->next != NULL);
-        in_end = in_end->next;
-      }
+
       /* 'in_end' now points to the last pbuf from 'in' */
       if (in_end == netif->loop_last) {
         /* this was the last pbuf in the list */
diff --git a/src/core/snmp/mib2.c b/src/core/snmp/mib2.c
index dcd3b62c..fe1bf6d7 100644
--- a/src/core/snmp/mib2.c
+++ b/src/core/snmp/mib2.c
@@ -772,8 +772,8 @@ static const s32_t sysservices = SNMP_SYSSERVICES;
 /** mib-2.system.sysDescr */
 static const u8_t sysdescr_len_default = 4;
 static const u8_t sysdescr_default[] = "lwIP";
-static u8_t* sysdescr_len_ptr = (u8_t*)&sysdescr_len_default;
-static u8_t* sysdescr_ptr = (u8_t*)&sysdescr_default[0];
+static const u8_t* sysdescr_len_ptr = &sysdescr_len_default;
+static const u8_t* sysdescr_ptr = &sysdescr_default[0];
 /** mib-2.system.sysContact */
 static const u8_t syscontact_len_default = 0;
 static const u8_t syscontact_default[] = "";
@@ -902,7 +902,7 @@ static u32_t snmpinpkts = 0,
  * @param src points to source
  * @param n number of octets to copy.
  */
-static void ocstrncpy(u8_t *dst, u8_t *src, u16_t n)
+static void ocstrncpy(u8_t *dst, const u8_t *src, u16_t n)
 {
   u16_t i = n;
   while (i > 0) {
@@ -918,7 +918,7 @@ static void ocstrncpy(u8_t *dst, u8_t *src, u16_t n)
  * @param src points to source
  * @param n number of sub identifiers to copy.
  */
-void objectidncpy(s32_t *dst, s32_t *src, u8_t n)
+void objectidncpy(s32_t *dst, const s32_t *src, u8_t n)
 {
   u8_t i = n;
   while(i > 0) {
@@ -933,7 +933,7 @@ void objectidncpy(s32_t *dst, s32_t *src, u8_t n)
  * @param str if non-NULL then copy str pointer
  * @param len points to string length, excluding zero terminator
  */
-void snmp_set_sysdesr(u8_t *str, u8_t *len)
+void snmp_set_sysdescr(const u8_t *str, const u8_t *len)
 {
   if (str != NULL)
   {
diff --git a/src/core/timers.c b/src/core/timers.c
index c8ead4e7..94e8029a 100644
--- a/src/core/timers.c
+++ b/src/core/timers.c
@@ -326,16 +326,34 @@ sys_timeout(u32_t msecs, sys_timeout_handler handler, void *arg)
 #endif /* LWIP_DEBUG_TIMERNAMES */
 {
   struct sys_timeo *timeout, *t;
+#if NO_SYS
+  u32_t now, diff;
+#endif
 
   timeout = (struct sys_timeo *)memp_malloc(MEMP_SYS_TIMEOUT);
   if (timeout == NULL) {
     LWIP_ASSERT("sys_timeout: timeout != NULL, pool MEMP_SYS_TIMEOUT is empty", timeout != NULL);
     return;
   }
+
+#if NO_SYS
+  now = sys_now();
+  if (next_timeout == NULL) {
+    diff = 0;
+    timeouts_last_time = now;
+  } else {
+    diff = now - timeouts_last_time;
+  }
+#endif
+
   timeout->next = NULL;
   timeout->h = handler;
   timeout->arg = arg;
+#if NO_SYS
+  timeout->time = msecs + diff;
+#else
   timeout->time = msecs;
+#endif
 #if LWIP_DEBUG_TIMERNAMES
   timeout->handler_name = handler_name;
   LWIP_DEBUGF(TIMERS_DEBUG, ("sys_timeout: %p msecs=%"U32_F" handler=%s arg=%p\n",
@@ -437,7 +455,7 @@ sys_check_timeouts(void)
       if (tmptimeout && (tmptimeout->time <= diff)) {
         /* timeout has expired */
         had_one = 1;
-        timeouts_last_time = now;
+        timeouts_last_time += tmptimeout->time;
         diff -= tmptimeout->time;
         next_timeout = tmptimeout->next;
         handler = tmptimeout->h;
diff --git a/src/include/ipv6/lwip/ip6_addr.h b/src/include/ipv6/lwip/ip6_addr.h
index 89b5b811..555f77c1 100644
--- a/src/include/ipv6/lwip/ip6_addr.h
+++ b/src/include/ipv6/lwip/ip6_addr.h
@@ -170,6 +170,10 @@ Little-endian version, stored in network order (no htonl). */
                              ((ip6addr)->addr[2] == 0) && \
                              ((ip6addr)->addr[3] == 0)))
 
+#define ip6_addr_isloopback(ip6addr) (((ip6addr)->addr[0] == 0UL) && \
+                                      ((ip6addr)->addr[1] == 0UL) && \
+                                      ((ip6addr)->addr[2] == 0UL) && \
+                                      ((ip6addr)->addr[3] == PP_HTONL(0x00000001UL)))
 
 #define ip6_addr_isglobal(ip6addr) (((ip6addr)->addr[0] & PP_HTONL(0xe0000000UL)) == PP_HTONL(0x20000000UL))
 
diff --git a/src/include/lwip/snmp.h b/src/include/lwip/snmp.h
index 2ed043dd..7844cc11 100644
--- a/src/include/lwip/snmp.h
+++ b/src/include/lwip/snmp.h
@@ -98,7 +98,7 @@ struct snmp_obj_id
 };
 
 /* system */
-void snmp_set_sysdesr(u8_t* str, u8_t* len);
+void snmp_set_sysdescr(const u8_t* str, const u8_t* len);
 void snmp_set_sysobjid(struct snmp_obj_id *oid);
 void snmp_get_sysobjid_ptr(struct snmp_obj_id **oid);
 void snmp_inc_sysuptime(void);
@@ -231,7 +231,7 @@ void snmp_get_snmpenableauthentraps(u8_t *value);
 #else
 
 /* system */
-#define snmp_set_sysdesr(str, len)
+#define snmp_set_sysdescr(str, len)
 #define snmp_set_sysobjid(oid);
 #define snmp_get_sysobjid_ptr(oid)
 #define snmp_inc_sysuptime()
diff --git a/src/include/lwip/sockets.h b/src/include/lwip/sockets.h
index 4d6e055a..853beea8 100644
--- a/src/include/lwip/sockets.h
+++ b/src/include/lwip/sockets.h
@@ -167,10 +167,12 @@ struct linger {
 #define PF_UNSPEC       AF_UNSPEC
 
 #define IPPROTO_IP      0
+#define IPPROTO_ICMP    1 
 #define IPPROTO_TCP     6
 #define IPPROTO_UDP     17
 #if LWIP_IPV6
 #define IPPROTO_IPV6    41
+#define IPPROTO_ICMPV6  58
 #endif /* LWIP_IPV6 */
 #define IPPROTO_UDPLITE 136