From cec2dd7816f56e47f56670a4ef37245929030a4e Mon Sep 17 00:00:00 2001
From: patrik <patrik@e0a8ed71-7df4-0310-8962-fdc924857419>
Date: Sat, 5 May 2012 19:44:46 +0000
Subject: [PATCH] Fixed a bug reported by Josh Greenwood that would incorrectly
 detect a host having IP forwarding enabled if the scanned host was the same
 as the probe target.

---
 scripts/ip-forwarding.nse | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/scripts/ip-forwarding.nse b/scripts/ip-forwarding.nse
index d1912cf9a..0ae222a9b 100644
--- a/scripts/ip-forwarding.nse
+++ b/scripts/ip-forwarding.nse
@@ -101,6 +101,10 @@ action = function(host)
 		target = arg_target
 	end
 	
+	if ( target == host.ip ) then
+		return ("\n  ERROR: Target can not be the same as the scanned host")
+	end
+	
 	if (icmpEchoRequest(ifname, host, target)) then
 		return ("\n  The host has ip forwarding enabled, tried ping against (%s)"):format(arg_target)
 	end