From 18d8c406cdc8461e8878ee8ea5a55fbbed55596d Mon Sep 17 00:00:00 2001
From: Scott Ullrich <sullrich@pfsense.org>
Date: Tue, 19 Feb 2008 07:00:01 +0000
Subject: [PATCH] Only delete a interface IP if it exists.

---
 etc/inc/config.inc | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/etc/inc/config.inc b/etc/inc/config.inc
index b730cf464e..2f8cffcfd0 100644
--- a/etc/inc/config.inc
+++ b/etc/inc/config.inc
@@ -1586,9 +1586,10 @@ Would you like to remove the IP LAN address and
 unload the interface now? [y|n]? 
 EODD;
 
-				if (strcasecmp(chop(fgets($fp)), "y") == 0) 
-					mwexec("/sbin/ifconfig delete " . $config['interfaces']['lan']);
-
+				if (strcasecmp(chop(fgets($fp)), "y") == 0) {
+					if($config['interfaces']['lan']['if'])
+						mwexec("/sbin/ifconfig delete " . $config['interfaces']['lan']['if']);
+				}
 				unset($config['interfaces']['lan']);
 				unset($config['dhcpd']['lan']);			
 				unset($config['interfaces']['lan']['if']);