diff -ruN e-smith-base-5.2.0.old/createlinks e-smith-base-5.2.0/createlinks
--- e-smith-base-5.2.0.old/createlinks	2013-01-30 05:07:05.000000000 +0000
+++ e-smith-base-5.2.0/createlinks	2013-01-30 05:23:47.000000000 +0000
@@ -19,6 +19,7 @@
 	/var/lib/dhclient/dhclient-eth1.conf
 	/var/service/wan/pppoe.pppd.conf
 	/var/service/wan/run.pppoe.conf
+	/var/service/wan/env.pppoe/PPPD_MLIMIT
 	/etc/ppp/ip-down.local
 	/etc/ppp/ip-up.local
     ))
diff -ruN e-smith-base-5.2.0.old/root/etc/e-smith/templates/var/service/wan/env.pppoe/PPPD_MLIMIT e-smith-base-5.2.0/root/etc/e-smith/templates/var/service/wan/env.pppoe/PPPD_MLIMIT
--- e-smith-base-5.2.0.old/root/etc/e-smith/templates/var/service/wan/env.pppoe/PPPD_MLIMIT	1970-01-01 01:00:00.000000000 +0100
+++ e-smith-base-5.2.0/root/etc/e-smith/templates/var/service/wan/env.pppoe/PPPD_MLIMIT	2013-01-30 05:28:36.000000000 +0000
@@ -0,0 +1,18 @@
+{
+   # memory limit to catch any memory leak before it kills the system
+   my $MIN_MEMORY_LIMIT = 100000000;
+   $OUT = $MIN_MEMORY_LIMIT;
+
+   if (defined $pppoe{Mlimit})
+   {
+      # If there is a DB variable defined that is less than the minimum memroy limit, delete it.
+      if ($pppoe{Mlimit} <= $MIN_MEMORY_LIMIT)
+      {
+         $DB->get_prop_and_delete('pppoe','Mlimit');
+      }
+      else 
+      {
+         $OUT=$pppoe{Mlimit};
+      }
+   }
+}
diff -ruN e-smith-base-5.2.0.old/root/etc/e-smith/templates/var/service/wan/run.pppoe.conf/mlimit e-smith-base-5.2.0/root/etc/e-smith/templates/var/service/wan/run.pppoe.conf/mlimit
--- e-smith-base-5.2.0.old/root/etc/e-smith/templates/var/service/wan/run.pppoe.conf/mlimit	2007-01-27 01:56:31.000000000 +0000
+++ e-smith-base-5.2.0/root/etc/e-smith/templates/var/service/wan/run.pppoe.conf/mlimit	1970-01-01 01:00:00.000000000 +0100
@@ -1,5 +0,0 @@
-{
-# memory limit to catch any memory leak before it kills the system
-    my $mlimit = $pppoe{Mlimit} || '25000000';
-    $OUT = "PPPD_MLIMIT=$mlimit";
-}
diff -ruN e-smith-base-5.2.0.old/root/var/service/wan/run.pppoe e-smith-base-5.2.0/root/var/service/wan/run.pppoe
--- e-smith-base-5.2.0.old/root/var/service/wan/run.pppoe	2013-01-30 05:07:05.000000000 +0000
+++ e-smith-base-5.2.0/root/var/service/wan/run.pppoe	2013-01-30 05:23:35.000000000 +0000
@@ -22,11 +22,12 @@
 exec 2>&1
 
 . run.pppoe.conf
+MEM="`head -1 ./env.pppoe/PPPD_MLIMIT`"
 
 extaddr=$(/sbin/e-smith/config getprop ExternalInterface IPAddress)
 
 exec \
-    /usr/local/bin/softlimit -m $PPPD_MLIMIT \
+    /usr/local/bin/softlimit -m ${MEM} \
     /usr/bin/setsid \
     /usr/sbin/pppd ${extaddr:+$extaddr:} \
     file pppoe.pppd.conf