openwrt-packages/net/net-snmp/patches/100-debian-statistics.patch

--- a/agent/mibgroup/mibII/interfaces.c
+++ b/agent/mibgroup/mibII/interfaces.c
@@ -1586,6 +1586,10 @@ Interface_Scan_Init(void)
         char           *stats, *ifstart = line;
         size_t          len;
 
+	/* Ignore interfaces with no statistics. */
+	if (strstr(line, "No statistics available."))
+	continue;
+
         len = strlen(line);
         if (len && line[len - 1] == '\n')
             line[len - 1] = '\0';