diff -urNbB snort-2.4.3.org/configure.in snort-2.4.3/configure.in
--- snort-2.4.3.org/configure.in	2005-10-17 00:21:08.000000000 +0200
+++ snort-2.4.3/configure.in	2005-10-31 00:46:20.301146250 +0100
@@ -743,21 +743,21 @@
         if test -n "$with_libnet_includes" -a "$with_libnet_includes" != "no"; then
             libnet_dir="${with_libnet_includes}"
          else
-            libnet_dir="/usr/include /usr/local/include /sw/include"
+            libnet_dir="/usr/include /usr/local/include /sw/include /usr/include/libnet1"
         fi
         AC_MSG_CHECKING("for libnet.h version 1.0.x")
         for i in $libnet_dir; do
-            if test -r $i/libnet.h; then
+            if test -r $i/libnet1.h; then
                 LIBNET_INC_DIR=$i
             fi
         done
 
         if test "$LIBNET_INC_DIR" != ""; then
-            if eval "grep LIBNET_VERSION $LIBNET_INC_DIR/libnet.h | grep -v 1.0 >/dev/null"; then
-                FAIL_MESSAGE("libnet 1.0.x (libnet.h)", $tmp)
+	    if eval "grep LIBNET_VERSION $LIBNET_INC_DIR/libnet1.h | grep -v 1.0.2a >/dev/null"; then
+		    FAIL_MESSAGE("libnet 1.0.x (libnet1.h)", $tmp)
             fi
-            CFLAGS="${CFLAGS} `libnet-config --defines` `libnet-config --cflags`"
-            LIBS="${LIBS} `libnet-config --libs`"
+	    CFLAGS="${CFLAGS} `libnet1-config --defines` `libnet1-config --cflags`"
+	    LIBS="${LIBS} `libnet1-config --libs`"
             CPPFLAGS="${CPPFLAGS} -I${LIBNET_INC_DIR}"
             AC_MSG_RESULT($i)
         else
@@ -769,26 +769,25 @@
 
 AC_ARG_ENABLE(flexresp,
 [  --enable-flexresp       Flexible Responses on hostile connection attempts],
-[ CPPFLAGS="${CPPFLAGS} -DENABLE_RESPONSE `libnet-config --defines --cflags`" LDFLAGS="${LDFLAGS} `libnet-config --libs`"],)
-                
+[ CPPFLAGS="${CPPFLAGS} -DENABLE_RESPONSE `libnet1-config --defines --cflags`" LDFLAGS="${LDFLAGS} `libnet1-config --libs`"],)
 
 if test "$enable_flexresp" != "no" -a "$enable_flexresp" = "yes"; then
 
-  if test `libnet-config --cflags | wc -c` = "1"; then
+  if test `libnet1-config --cflags | wc -c` = "1"; then
     CPPFLAGS="${CPPFLAGS} -I/usr/local/include -I/sw/include"
     LIBNET_CONFIG_BROKEN_CFLAGS=yes
   fi
 
-  if test `libnet-config --libs | wc -c` = "1"; then
-    AC_MSG_WARN(libnet-config --libs is broken on your system.  If you)
+  if test `libnet1-config --libs | wc -c` = "1"; then
+    AC_MSG_WARN(libnet1-config --libs is broken on your system.  If you)
     AC_MSG_WARN(are using a precompiled package please notify the) 
     AC_MSG_WARN(maintainer.)
     LDFLAGS="${LDFLAGS} -L/usr/local/lib -L/sw/lib"
     LIBS="${LIBS} -lnet"
   fi
 
-  LNET=""
-  AC_CHECK_HEADERS(libnet.h,, LNET="no")
+  LNET="yes"
+  AC_CHECK_HEADERS(libnet1.h,, LNET="no")
   if test "$LNET" = "no"; then
     echo
     echo "   ERROR!  Libnet header not found, go get it from"
@@ -801,38 +800,38 @@
   AC_MSG_CHECKING(for libnet version 1.0.2a)
   if test "${LIBNET_CONFIG_BROKEN_CFLAGS}" = "yes"; then
     if test -n "$with_libnet_includes" -a "$with_libnet_includes" != "no"; then
-      libnet_dir="${with_libnet_includes}"
+      libnet_dir="${with_libnet1_includes}"
     else
       libnet_dir="/usr/include /usr/local/include /sw/include"
     fi
   else
-    libnet_dir=`libnet-config --cflags | cut -dI -f2`
+    libnet_dir=`libnet1-config --cflags | cut -dI -f2`
   fi
 
-  LIBNET_INC_DIR=""
+  LIBNET_INC_DIR="/usr/include/libnet1"
   for i in $libnet_dir; do
-    if test -r $i/libnet.h; then
+    if test -r $i/libnet1.h; then
       LIBNET_INC_DIR=$i
     fi
   done
 
   if test "$LIBNET_INC_DIR" != ""; then
-    if eval "grep LIBNET_VERSION $LIBNET_INC_DIR/libnet.h | grep -v 1.0.2a >/dev/null"; then
+    if eval "grep LIBNET_VERSION $LIBNET_INC_DIR/libnet1.h | grep -v 1.0.2a >/dev/null"; then
       AC_MSG_RESULT(no)
       echo
       echo "   ERROR!  Snort with --enable-flexresp will *only* work with"
       echo "   libnet version 1.0.2a, go get it from"
       echo "   http://www.packetfactory.net/projects/libnet/"
-      FAIL_MESSAGE("libnet 1.0.2a (libnet.h)", $LIBNET_INC_DIR)
+      FAIL_MESSAGE("libnet 1.0.2a (libnet1.h)", $LIBNET_INC_DIR)
     fi
     AC_MSG_RESULT(yes)
   else
     AC_MSG_RESULT(no)
-    FAIL_MESSAGE("libnet 1.0.2a (libnet.h)", $libnet_dir)
+    FAIL_MESSAGE("libnet 1.0.2a (libnet1.h)", $libnet_dir)
   fi
 
   LNET=""
-  AC_CHECK_LIB(net, libnet_build_ip,, LNET="no")
+  AC_CHECK_LIB(net1, libnet_build_ip,, LNET="no")
   if test "$LNET" = "no"; then
     echo
     echo "   ERROR!  Libnet library not found, go get it from"
diff -urNbB snort-2.4.3.org/src/detection-plugins/sp_react.c snort-2.4.3/src/detection-plugins/sp_react.c
--- snort-2.4.3.org/src/detection-plugins/sp_react.c	2004-03-23 16:34:46.000000000 +0100
+++ snort-2.4.3/src/detection-plugins/sp_react.c	2005-10-31 00:42:52.160138250 +0100
@@ -57,7 +57,7 @@
 #include <stdlib.h>
 #include <string.h>
 #include <ctype.h>
-#include <libnet.h>
+#include <libnet1.h>
 
 #include "rules.h"
 #include "decode.h"
diff -urNbB snort-2.4.3.org/src/detection-plugins/sp_respond.c snort-2.4.3/src/detection-plugins/sp_respond.c
--- snort-2.4.3.org/src/detection-plugins/sp_respond.c	2004-03-23 16:34:46.000000000 +0100
+++ snort-2.4.3/src/detection-plugins/sp_respond.c	2005-10-31 00:42:52.160138250 +0100
@@ -34,7 +34,7 @@
 
 
 #ifdef ENABLE_RESPONSE
-#include <libnet.h>
+#include <libnet1.h>
 
 #include "decode.h"
 #include "rules.h"
diff -urNbB snort-2.4.3.org/src/inline.c snort-2.4.3/src/inline.c
--- snort-2.4.3.org/src/inline.c	2005-05-05 22:00:35.000000000 +0200
+++ snort-2.4.3/src/inline.c	2005-10-31 00:42:52.160138250 +0100
@@ -3,7 +3,7 @@
 #include <stdlib.h>
 #include <string.h>
 #include <pcap.h>
-#include <libnet.h>
+#include <libnet1.h>
 
 #include "decode.h"
 #include "inline.h"