diff --git a/examples/telnetd/Kconfig b/examples/telnetd/Kconfig
index a94c944e3..99533dbad 100644
--- a/examples/telnetd/Kconfig
+++ b/examples/telnetd/Kconfig
@@ -6,6 +6,7 @@
 config EXAMPLES_TELNETD
 	bool "Telnet daemon example"
 	default n
+	depends on NETUTILS_TELNETD
 	---help---
 		Enable the Telnet daemon example
 
diff --git a/examples/thttpd/content/Makefile.binfs b/examples/thttpd/content/Makefile.binfs
index 67e09b2c8..204608c07 100644
--- a/examples/thttpd/content/Makefile.binfs
+++ b/examples/thttpd/content/Makefile.binfs
@@ -50,7 +50,7 @@ ROMFS_IMG = $(CONTENT_DIR)/romfs.img
 ROMFS_HDR = $(CONTENT_DIR)/romfs.h
 
 ASRCS =
-CSRCS = hello.c netstat.c tasks.c
+CSRCS = hello.c tasks.c
 
 AOBJS = $(ASRCS:.S=$(OBJEXT))
 COBJS = $(CSRCS:.c=$(OBJEXT))
@@ -74,8 +74,8 @@ else
   INSTALL_DIR = $(BIN_DIR)
 endif
 
-ROOTDEPPATH = --dep-path hello --dep-path netstat --dep-path tasks
-VPATH = hello:netstat:tasks
+ROOTDEPPATH = --dep-path hello --dep-path tasks
+VPATH = hello:tasks
 
 all: .built
 .PHONY: context headers binaries depend clean
@@ -122,13 +122,10 @@ headers: $(ROMFS_HDR)
 $(BUILTIN_REGISTRY)$(DELIM)hello_main.bdat: $(DEPCONFIG) Makefile
 	$(call REGISTER,hello,$(PRIORITY),$(STACKSIZE),hello_main)
 
-$(BUILTIN_REGISTRY)$(DELIM)netstat_main.bdat: $(DEPCONFIG) Makefile
-	$(call REGISTER,netstat,$(PRIORITY),$(STACKSIZE),netstat_main)
-
 $(BUILTIN_REGISTRY)$(DELIM)tasks_main.bdat: $(DEPCONFIG) Makefile
 	$(call REGISTER,tasks,$(PRIORITY),$(STACKSIZE),tasks_main)
 
-context: $(BUILTIN_REGISTRY)$(DELIM)hello_main.bdat $(BUILTIN_REGISTRY)$(DELIM)netstat_main.bdat $(BUILTIN_REGISTRY)$(DELIM)tasks_main.bdat
+context: $(BUILTIN_REGISTRY)$(DELIM)hello_main.bdat $(BUILTIN_REGISTRY)$(DELIM)tasks_main.bdat
 
 .depend: Makefile $(SRCS)
 	@$(MKDEP) $(ROOTDEPPATH) "$(CC)" -- $(CFLAGS) -- $(SRCS) >Make.dep
diff --git a/examples/thttpd/content/Makefile.nxflat b/examples/thttpd/content/Makefile.nxflat
index 519b91b4d..3f24447cb 100644
--- a/examples/thttpd/content/Makefile.nxflat
+++ b/examples/thttpd/content/Makefile.nxflat
@@ -33,7 +33,7 @@
 #
 ############################################################################
 
-SUBDIRS = hello tasks netstat
+SUBDIRS = hello tasks
 INSTALL_FILES = index.html style.css
 
 THTTPD_DIR = $(APPDIR)/examples/thttpd
diff --git a/examples/thttpd/content/hello/hello.c b/examples/thttpd/content/hello/hello.c
index e46f49c45..18009bb24 100644
--- a/examples/thttpd/content/hello/hello.c
+++ b/examples/thttpd/content/hello/hello.c
@@ -69,7 +69,6 @@ int main(int argc, char *argv[])
         "<div class=\"menubox\"><a href=\"/index.html\">Front page</a></div>\r\n"
         "<div class=\"menubox\"><a href=\"hello\">Say Hello</a></div>\r\n"
         "<div class=\"menubox\"><a href=\"tasks\">Tasks</a></div>\r\n"
-        "<div class=\"menubox\"><a href=\"netstat\">Network status</a></div>\r\n"
         "<br>\r\n"
         "</div>\r\n"
         "<div class=\"contentblock\">\r\n");
diff --git a/examples/thttpd/content/index.html b/examples/thttpd/content/index.html
index 0995bd057..5a6b76ccf 100644
--- a/examples/thttpd/content/index.html
+++ b/examples/thttpd/content/index.html
@@ -10,7 +10,6 @@
   <div class="menubox"><a href="index.html">Front page</a></div>
   <div class="menubox"><a href="cgi-bin/hello">Say Hello</a></div>
   <div class="menubox"><a href="cgi-bin/tasks">Tasks</a></div>
-  <div class="menubox"><a href="cgi-bin/netstat">Network status</a></div>
   <br>
   </div>
 
diff --git a/examples/thttpd/content/netstat/.gitignore b/examples/thttpd/content/netstat/.gitignore
deleted file mode 100644
index 6824a421d..000000000
--- a/examples/thttpd/content/netstat/.gitignore
+++ /dev/null
@@ -1,5 +0,0 @@
-netstat
-*.r1
-*.r2
-*-thunk.S
-
diff --git a/examples/thttpd/content/netstat/Makefile b/examples/thttpd/content/netstat/Makefile
deleted file mode 100644
index 9b8c84b9c..000000000
--- a/examples/thttpd/content/netstat/Makefile
+++ /dev/null
@@ -1,82 +0,0 @@
-############################################################################
-# examples/thttpd/content/netstat/Makefile
-#
-#   Copyright (C) 2009, 2016 Gregory Nutt. All rights reserved.
-#   Author: Gregory Nutt <gnutt@nuttx.org>
-#
-# Redistribution and use in source and binary forms, with or without
-# modification, are permitted provided that the following conditions
-# are met:
-#
-# 1. Redistributions of source code must retain the above copyright
-#    notice, this list of conditions and the following disclaimer.
-# 2. Redistributions in binary form must reproduce the above copyright
-#    notice, this list of conditions and the following disclaimer in
-#    the documentation and/or other materials provided with the
-#    distribution.
-# 3. Neither the name NuttX nor the names of its contributors may be
-#    used to endorse or promote products derived from this software
-#    without specific prior written permission.
-#
-# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
-# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
-# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
-# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
-# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
-# POSSIBILITY OF SUCH DAMAGE.
-#
-############################################################################
-
--include $(TOPDIR)/Make.defs
-
-BIN = netstat
-
-R1SRCS = $(BIN).c
-R1OBJS = $(R1SRCS:.c=.o)
-
-R2SRC = $(BIN)-thunk.S
-R2OBJ = $(R2SRC:.S=.o)
-
-all: $(BIN)
-.PHONY: clean install
-
-$(R1OBJS): %.o: %.c
-	@echo "CC: $<"
-	$(Q) $(CC) -c $(CPICFLAGS) $< -o $@
-
-$(R2OBJ): %.o: %.S
-	@echo "AS: $<"
-	$(Q) $(CC) -c $(CPICFLAGS) $< -o $@
-
-$(BIN).r1: $(R1OBJS)
-	@echo "LD: $<"
-	$(Q) $(LD) $(NXFLATLDFLAGS1) -o $@ $^
-
-$(R2SRC): $(BIN).r1
-	@echo "MK: $<"
-	$(Q) $(MKNXFLAT) -o $@ $^
-
-$(BIN).r2: $(R2OBJ)
-	@echo "LD: $<"
-	$(Q) $(LD) $(NXFLATLDFLAGS2) -o $@ $(R1OBJS) $(R2OBJ)
-
-$(BIN): $(BIN).r2
-	@echo "LD: $<"
-	$(Q) $(LDNXFLAT) $(LDNXFLATFLAGS) -o $@ $^
-
-clean:
-	$(call DELFILE, $(BIN))
-	$(call DELFILE, $(R2SRC))
-	$(call DELFILE, *.r1)
-	$(call DELFILE, *.r2)
-	$(call CLEAN)
-
-install:
-	$(Q) install -m 0755 -D $(BIN) $(CGI_DIR)/$(BIN)
-
diff --git a/examples/thttpd/content/netstat/netstat.c b/examples/thttpd/content/netstat/netstat.c
deleted file mode 100644
index b07f22c2b..000000000
--- a/examples/thttpd/content/netstat/netstat.c
+++ /dev/null
@@ -1,140 +0,0 @@
-/****************************************************************************
- * examples/thttpd/netstat/netstat.c
- *
- *   Copyright (C) 2009, 2011, 2015 Gregory Nutt. All rights reserved.
- *   Author: Gregory Nutt <gnutt@nuttx.org>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name NuttX nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- ****************************************************************************/
-
-/****************************************************************************
- * Included Files
- ****************************************************************************/
-
-#include <nuttx/config.h>
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-
-#include <netinet/in.h>
-#include <netinet/ether.h>
-
-#include <nuttx/net/netconfig.h>
-#include <nuttx/net/netdev.h>
-
-/****************************************************************************
- * Pre-processor Definitions
- ****************************************************************************/
-
-/****************************************************************************
- * Private Types
- ****************************************************************************/
-
-/****************************************************************************
- * Private Function Prototypes
- ****************************************************************************/
-
-/****************************************************************************
- * Private Data
- ****************************************************************************/
-
-/****************************************************************************
- * Public Data
- ****************************************************************************/
-
-/****************************************************************************
- * Private Functions
- ****************************************************************************/
-
-/* NOTEs:
- *
- * 1. One limitation in the use of NXFLAT is that functions that are
- *    referenced as a pointer-to-a-function must have global scope.  Otherwise
- *    ARM GCC will generate some bad logic.
- * 2. In general, when called back, there is no guarantee to that PIC registers
- *    will be valid and, unless you take special precautions, it could be
- *    dangerous to reference global variables in the callback function.
- */
-
-/* static */ int netdev_callback(FAR struct net_driver_s *dev, void *arg)
-{
-  struct in_addr addr;
-
-  printf("  <dt>%s\r\n", dev->d_ifname);
-#ifdef CONFIG_NET_ETHERNET
-  printf("    <dd>HWaddr: %s<br>\r\n", ether_ntoa(&dev->d_mac));
-#endif
-  addr.s_addr = dev->d_ipaddr;
-  printf("    IPaddr: %s<br>\r\n", inet_ntoa(addr));
-  addr.s_addr = dev->d_draddr;
-  printf("    DRaddr: %s<br>\r\n", inet_ntoa(addr));
-  addr.s_addr = dev->d_netmask;
-  printf("    Mask: %s\r\n", inet_ntoa(addr));
-  return OK;
-}
-
-/****************************************************************************
- * Public Functions
- ****************************************************************************/
-
-#ifdef CONFIG_THTTPD_BINFS
-int netstat_main(int argc, char *argv[])
-#else
-int main(int argc, char *argv[])
-#endif
-{
-  puts(
-    "Content-type: text/html\r\n"
-    "Status: 200/html\r\n"
-    "\r\n"
-    "<html>\r\n"
-      "<head>\r\n"
-        "<title>Network Status</title>\r\n"
-        "<link rel=\"stylesheet\" type=\"text/css\" href=\"/style.css\">\r\n"
-      "</head>\r\n"
-      "<body bgcolor=\"#fffeec\" text=\"black\">\r\n"
-        "<div class=\"menu\">\r\n"
-        "<div class=\"menubox\"><a href=\"/index.html\">Front page</a></div>\r\n"
-        "<div class=\"menubox\"><a href=\"hello\">Say Hello</a></div>\r\n"
-        "<div class=\"menubox\"><a href=\"tasks\">Tasks</a></div>\r\n"
-        "<div class=\"menubox\"><a href=\"netstat\">Network status</a></div>\r\n"
-        "<br>\r\n"
-        "</div>\r\n"
-        "<div class=\"contentblock\">\r\n"
-        "<dl>\r\n");
-
-  netdev_foreach(netdev_callback, NULL);
-
-  puts(
-        "</dl>\r\n"
-      "</body>\r\n"
-   "</html>\r\n");
-  return 0;
-}
diff --git a/examples/thttpd/content/tasks/tasks.c b/examples/thttpd/content/tasks/tasks.c
index 3d6beb93e..b82e8dbd0 100644
--- a/examples/thttpd/content/tasks/tasks.c
+++ b/examples/thttpd/content/tasks/tasks.c
@@ -194,7 +194,6 @@ int main(int argc, char *argv[])
         "<div class=\"menubox\"><a href=\"/index.html\">Front page</a></div>\r\n"
         "<div class=\"menubox\"><a href=\"hello\">Say Hello</a></div>\r\n"
         "<div class=\"menubox\"><a href=\"tasks\">Tasks</a></div>\r\n"
-        "<div class=\"menubox\"><a href=\"netstat\">Network status</a></div>\r\n"
         "<br>\r\n"
         "</div>\r\n"
         "<div class=\"contentblock\">\r\n"
diff --git a/nshlib/README.txt b/nshlib/README.txt
index 0bf4a50f7..bb28399b5 100644
--- a/nshlib/README.txt
+++ b/nshlib/README.txt
@@ -528,17 +528,17 @@ o ifconfig [nic_name [<ip-address>|dhcp]] [dr|gw|gateway <dr-address>] [netmask
 
     nsh> mount -t procfs /proc
 
-o ifdown <nic-name>
+o ifdown <interface>
 
-  Take down the interface identified by the name <nic-name>.
+  Take down the interface identified by the name <interface>.
 
   Example:
 
     ifdown eth0
 
-o ifup <nic-name>
+o ifup <interface>
 
-  Bring up down the interface identified by the name <nic-name>.
+  Bring up down the interface identified by the name <interface>.
 
   Example:
 
diff --git a/nshlib/nsh_command.c b/nshlib/nsh_command.c
index b4e334e0f..cca237151 100644
--- a/nshlib/nsh_command.c
+++ b/nshlib/nsh_command.c
@@ -240,11 +240,11 @@ static const struct cmdmap_s g_cmdmap[] =
 
 #ifdef CONFIG_NET
 # ifndef CONFIG_NSH_DISABLE_IFCONFIG
-  { "ifconfig", cmd_ifconfig, 1, 11, "[nic-name [<ip-address>|dhcp]] [dr|gw|gateway <dr-address>] [netmask <net-mask>] [dns <dns-address>] [hw <hw-mac>]" },
+  { "ifconfig", cmd_ifconfig, 1, 11, "[interface [<ip-address>|dhcp]] [dr|gw|gateway <dr-address>] [netmask <net-mask>] [dns <dns-address>] [hw <hw-mac>]" },
 # endif
 # ifndef CONFIG_NSH_DISABLE_IFUPDOWN
-  { "ifdown",   cmd_ifdown,   2, 2,  "<nic-name>" },
-  { "ifup",     cmd_ifup,     2, 2,  "<nic-name>" },
+  { "ifdown",   cmd_ifdown,   2, 2,  "<interface>" },
+  { "ifup",     cmd_ifup,     2, 2,  "<interface>" },
 # endif
 #endif
 
diff --git a/nshlib/nsh_netcmds.c b/nshlib/nsh_netcmds.c
index f57a71a73..982173e1d 100644
--- a/nshlib/nsh_netcmds.c
+++ b/nshlib/nsh_netcmds.c
@@ -1,7 +1,7 @@
 /****************************************************************************
  * apps/nshlib/nsh_netcmds.c
  *
- *   Copyright (C) 2007-2012, 2014-2015 Gregory Nutt. All rights reserved.
+ *   Copyright (C) 2007-2012, 2014-2015, 2017 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <gnutt@nuttx.org>
  *
  * Redistribution and use in source and binary forms, with or without
@@ -758,10 +758,9 @@ int cmd_ifconfig(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv)
   bool inet6 = false;
 #endif
   bool badarg = false;
-#ifdef CONFIG_NET_ETHERNET
+#if defined(CONFIG_NET_ETHERNET)
   uint8_t mac[IFHWADDRLEN];
-#endif
-#ifdef CONFIG_NET_6LOWPAN
+#elif defined(CONFIG_NET_6LOWPAN)
   uint8_t eaddr[8];
 #endif
 #if defined(CONFIG_NSH_DHCPC)
@@ -769,11 +768,11 @@ int cmd_ifconfig(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv)
 #endif
   int ret;
 
-  /* With one or no arguments, ifconfig simply shows the status of Ethernet
-   * device:
+  /* With one or no arguments, ifconfig simply shows the status of the
+   * network device:
    *
    *   ifconfig
-   *   ifconfig [nic_name]
+   *   ifconfig [interface]
    */
 
   if (argc <= 2)