diff -Naur o/ifconfig.sh n/ifconfig.sh
--- o/ifconfig.sh	2006-12-14 21:38:13.000000000 +0200
+++ n/ifconfig.sh	2006-12-14 21:39:33.000000000 +0200
@@ -407,6 +407,7 @@
 	else
 		# IPv4 is tricky - ifconfig requires an aliased device
 		# for multiple addresses
+		is_loopback "${iface}" ||
 		if ifconfig "${iface}" | grep -Eq "\<inet addr:.*" ; then
 			# Get the last alias made for the interface and add 1 to it
 			i=$(ifconfig | tac | grep -m 1 -o "^${iface}:[0-9]*" \
@@ -430,14 +431,6 @@
 		config=( "${config[@]//peer/pointopoint}" )
 	fi
 
-	# Some kernels like to apply lo with an address when they are brought up
-	if [[ ${config[@]} == "127.0.0.1 netmask 255.0.0.0 broadcast 127.255.255.255" ]]; then
-		if is_loopback "${real_iface}" ; then
-			ifconfig "${real_iface}" ${config[@]}
-			return 0
-		fi
-	fi
-
 	ifconfig "${iface}" ${config[@]}
 }