diff --git a/configure.ac b/configure.ac
index 3987fc711..3118e89b4 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1755,38 +1755,71 @@ AC_ARG_WITH(testnic,
       nic2=$withval
       AC_MSG_RESULT([Using --with-testnic=$withval])],
     [
+case $host in
+    *-*-linux*)
+    nic1=eth0
+    nic2=eth0
+    ;;
+
+    *-*-solaris*)
+    nic1=hme0
+    nic2=hme0
+    ;;
+
+    *-*-sunos*)
+    nic1=hme0
+    nic2=hme0
+    ;;
+
+    *-apple-darwin*)
+    nic1=en0
+    nic2=en0
+    ;;
+
+    *-*-openbsd*)
+    nic1=xl0
+    nic2=xl0
+    ;;
+
+    *-*-freebsd*)
+    nic1=em0
+    nic2=em0
+    ;;
+
+    *-*-cygwin)
+    nic1=%0
+    nic2=%0
+    ;;
+
+    *)
+    AC_MSG_RESULT([$host is unknown!  Using first non-loopback interface])
+    nic1=%0
+    nic2=%0
+    ;;
+esac])
 
 dnl There's a bug in OS X which causes pcap_findalldevs() to make the wifi NIC to disassociate
 dnl so under OSX we disable the interface list feature
 disable_pcap_findalldevs=no
-
 osx_frameworks=no
 dnl these need to be dynamic based on OS
 case $host in
     *-*-linux*)
-    nic1=eth0
-    nic2=eth0
     AC_DEFINE([HAVE_LINUX], [1], [Building Linux])
     AC_MSG_RESULT(Linux)
     ;;
 
     *-*-solaris*)
-    nic1=hme0
-    nic2=hme0
     AC_DEFINE([HAVE_SOLARIS], [1], [Building Solaris])
     AC_MSG_RESULT(Solaris)
     ;;
 
     *-*-sunos*)
-    nic1=hme0
-    nic2=hme0
     AC_DEFINE([HAVE_SUNOS], [1], [Building SunOS])
     AC_MSG_RESULT(SunOS)
     ;;
 
     *-apple-darwin*)
-    nic1=en0
-    nic2=en0
     if test x$libpcap_version_096 = xno ; then
         disable_pcap_findalldevs=yes
     fi
@@ -1796,33 +1829,24 @@ case $host in
     ;;
 
     *-*-openbsd*)
-    nic1=xl0
-    nic2=xl0
     AC_DEFINE([HAVE_OPENBSD], [1], [Building Open BSD])
     AC_MSG_RESULT(OpenBSD)
     ;;
 
     *-*-freebsd*)
-    nic1=em0
-    nic2=em0
     AC_DEFINE([HAVE_FREEBSD], [1], [Building Free BSD])
     AC_MSG_RESULT(FreeBSD)
     ;;
 
     *-*-cygwin)
     AC_MSG_RESULT(Win32/Cygwin)
-    nic1=%0
-    nic2=%0
     AC_DEFINE([HAVE_CYGWIN], [1], [Building Cygwin])
     ;;
 
     *)
-    AC_MSG_RESULT([$host is unknown!  Using first non-loopback interface])
-    nic1=%0
-    nic2=%0
+    AC_MSG_RESULT([$host is unknown!])
     ;;
-esac])
-
+esac
 AM_CONDITIONAL([ENABLE_OSX_FRAMEWORKS], test "$osx_frameworks" = "yes")
 
 AC_ARG_WITH(testnic2,