--- /dev/null
+#!/bin/bash
+iptables="/sbin/iptables"
+iptablesrestore="/sbin/iptables-restore"
+ifconfig="/sbin/ifconfig"
+
+#pimp files must be generated by optional-tools/make-pimp utility
+pimp_2way_nat="/mnt/mtdblock0/pimp-2way-nat.tmp"
+pimp_snat="/mnt/mtdblock0/pimp-snat.tmp"
+etchosts="/mnt/mtdblock0/hosts"
+restoredata="/mnt/mtdblock0/iptables-restore.in"
+wan1="vlan770"
+wan2="vlan771"
+wan3="vlan772"
+
+echo "*nat" > $restoredata
+echo ":PREROUTING ACCEPT [0:0]" >> $restoredata
+echo ":POSTROUTING ACCEPT [0:0]" >> $restoredata
+echo ":OUTPUT ACCEPT [0:0]" >> $restoredata
+
+# ===============================================================
+# Symetrical SNAT-DNAT using indexed iptables
+# ===============================================================
+
+echo -n "Generating new iptables-restore data - two way SNAT/DNAT "
+
+for czfip in `grep -v ^# $pimp_2way_nat|cut -f 1 -d " "`
+do
+ pubip=`grep "$czfip " $pimp_2way_nat|cut -f 2 -d " "`
+ czffirstindex=priv_`ipcalc -n $czfip/20|grep Network|cut -f 4 -d \ |tr [./] _`
+ czfsecondindex=priv_`ipcalc -n $czfip/23|grep Network|cut -f 4 -d \ |tr [./] _`
+ czfthirdindex=priv_`ipcalc -n $czfip/26|grep Network|cut -f 4 -d \ |tr [./] _`
+ pubfirstindex=pub_`ipcalc -n $pubip/27|grep Network|cut -f 4 -d \ |tr [./] _`
+ pubsecondindex=pub_`ipcalc -n $pubip/29|grep Network|cut -f 4 -d \ |tr [./] _`
+
+ if ! grep $czffirstindex $restoredata > /dev/null
+ then
+ echo :$czffirstindex "- [0:0]" >> $restoredata
+ echo -A POSTROUTING -d ! 10.0.0.0/8 -s `ipcalc -n $czfip/20|grep Network|cut -f 4 -d \ ` -o $wan1 -j $czffirstindex >> $restoredata
+ echo -A POSTROUTING -d ! 10.0.0.0/8 -s `ipcalc -n $czfip/20|grep Network|cut -f 4 -d \ ` -o $wan2 -j $czffirstindex >> $restoredata
+ echo -A POSTROUTING -d ! 10.0.0.0/8 -s `ipcalc -n $czfip/20|grep Network|cut -f 4 -d \ ` -o $wan3 -j $czffirstindex >> $restoredata
+ fi
+
+ if ! grep $czfsecondindex $restoredata > /dev/null
+ then
+ echo :$czfsecondindex "- [0:0]" >> $restoredata
+ echo -A $czffirstindex -s `ipcalc -n $czfip/23|grep Network|cut -f 4 -d \ ` -o $wan1 -j $czfsecondindex >> $restoredata
+ echo -A $czffirstindex -s `ipcalc -n $czfip/23|grep Network|cut -f 4 -d \ ` -o $wan2 -j $czfsecondindex >> $restoredata
+ echo -A $czffirstindex -s `ipcalc -n $czfip/23|grep Network|cut -f 4 -d \ ` -o $wan3 -j $czfsecondindex >> $restoredata
+ fi
+
+ if ! grep $czfthirdindex $restoredata > /dev/null
+ then
+ echo :$czfthirdindex "- [0:0]" >> $restoredata
+ echo -A $czfsecondindex -s `ipcalc -n $czfip/26|grep Network|cut -f 4 -d \ ` -o $wan1 -j $czfthirdindex >> $restoredata
+ echo -A $czfsecondindex -s `ipcalc -n $czfip/26|grep Network|cut -f 4 -d \ ` -o $wan2 -j $czfthirdindex >> $restoredata
+ echo -A $czfsecondindex -s `ipcalc -n $czfip/26|grep Network|cut -f 4 -d \ ` -o $wan3 -j $czfthirdindex >> $restoredata
+ fi
+
+ if ! grep $pubfirstindex $restoredata > /dev/null
+ then
+ echo :$pubfirstindex "- [0:0]" >> $restoredata
+ echo -A PREROUTING -i $wan1 -d `ipcalc -n $pubip/27|grep Network|cut -f 4 -d \ ` -j $pubfirstindex >> $restoredata
+ echo -A PREROUTING -i $wan2 -d `ipcalc -n $pubip/27|grep Network|cut -f 4 -d \ ` -j $pubfirstindex >> $restoredata
+ echo -A PREROUTING -i $wan3 -d `ipcalc -n $pubip/27|grep Network|cut -f 4 -d \ ` -j $pubfirstindex >> $restoredata
+ fi
+
+ if ! grep $pubsecondindex $restoredata > /dev/null
+ then
+ echo :$pubsecondindex "- [0:0]" >> $restoredata
+ echo -A $pubfirstindex -i $wan1 -d `ipcalc -n $pubip/29|grep Network|cut -f 4 -d \ ` -j $pubsecondindex >> $restoredata
+ echo -A $pubfirstindex -i $wan2 -d `ipcalc -n $pubip/29|grep Network|cut -f 4 -d \ ` -j $pubsecondindex >> $restoredata
+ echo -A $pubfirstindex -i $wan3 -d `ipcalc -n $pubip/29|grep Network|cut -f 4 -d \ ` -j $pubsecondindex >> $restoredata
+ fi
+
+ echo -A $pubsecondindex -i $wan1 -d $pubip/32 -j DNAT --to-destination $czfip >> $restoredata
+ echo -A $pubsecondindex -i $wan2 -d $pubip/32 -j DNAT --to-destination $czfip >> $restoredata
+ echo -A $pubsecondindex -i $wan3 -d $pubip/32 -j DNAT --to-destination $czfip >> $restoredata
+ echo -A $pubsecondindex -i $wan1 -d $pubip/32 -j ACCEPT >> $restoredata
+ echo -A $pubsecondindex -i $wan2 -d $pubip/32 -j ACCEPT >> $restoredata
+ echo -A $pubsecondindex -i $wan3 -d $pubip/32 -j ACCEPT >> $restoredata
+
+
+ echo -A $czfthirdindex -s $czfip/32 -o $wan1 -j SNAT --to-source $pubip >> $restoredata
+ echo -A $czfthirdindex -s $czfip/32 -o $wan2 -j SNAT --to-source $pubip >> $restoredata
+ echo -A $czfthirdindex -s $czfip/32 -o $wan3 -j SNAT --to-source $pubip >> $restoredata
+ echo -A $czfthirdindex -s $czfip/32 -o $wan1 -j ACCEPT >> $restoredata
+ echo -A $czfthirdindex -s $czfip/32 -o $wan2 -j ACCEPT >> $restoredata
+ echo -A $czfthirdindex -s $czfip/32 -o $wan3 -j ACCEPT >> $restoredata
+
+ echo -n .
+done
+echo " done."
+
+echo -n "Generating new iptables-restore data - one way SNAT "
+
+# ===============================================================
+# SNAT only using indexed iptables (should be rather function, hmm)
+# ===============================================================
+
+for czfip in `grep -v ^# $pimp_snat|cut -f 1 -d " "`
+do
+ pubip=`grep "$czfip " $pimp_snat|cut -f 2 -d " "`
+ czffirstindex=priv_`ipcalc -n $czfip/20|grep Network|cut -f 4 -d \ |tr [./] _`
+ czfsecondindex=priv_`ipcalc -n $czfip/23|grep Network|cut -f 4 -d \ |tr [./] _`
+ czfthirdindex=priv_`ipcalc -n $czfip/26|grep Network|cut -f 4 -d \ |tr [./] _`
+
+ if ! grep $czffirstindex $restoredata > /dev/null
+ then
+ echo :$czffirstindex "- [0:0]" >> $restoredata
+ echo -A POSTROUTING -d ! 10.0.0.0/8 -s `ipcalc -n $czfip/20|grep Network|cut -f 4 -d \ ` -o $wan1 -j $czffirstindex >> $restoredata
+ echo -A POSTROUTING -d ! 10.0.0.0/8 -s `ipcalc -n $czfip/20|grep Network|cut -f 4 -d \ ` -o $wan2 -j $czffirstindex >> $restoredata
+ echo -A POSTROUTING -d ! 10.0.0.0/8 -s `ipcalc -n $czfip/20|grep Network|cut -f 4 -d \ ` -o $wan3 -j $czffirstindex >> $restoredata
+ fi
+
+ if ! grep $czfsecondindex $restoredata > /dev/null
+ then
+ echo :$czfsecondindex "- [0:0]" >> $restoredata
+ echo -A $czffirstindex -s `ipcalc -n $czfip/23|grep Network|cut -f 4 -d \ ` -o $wan1 -j $czfsecondindex >> $restoredata
+ echo -A $czffirstindex -s `ipcalc -n $czfip/23|grep Network|cut -f 4 -d \ ` -o $wan2 -j $czfsecondindex >> $restoredata
+ echo -A $czffirstindex -s `ipcalc -n $czfip/23|grep Network|cut -f 4 -d \ ` -o $wan3 -j $czfsecondindex >> $restoredata
+ fi
+
+ if ! grep $czfthirdindex $restoredata > /dev/null
+ then
+ echo :$czfthirdindex "- [0:0]" >> $restoredata
+ echo -A $czfsecondindex -s `ipcalc -n $czfip/26|grep Network|cut -f 4 -d \ ` -o $wan1 -j $czfthirdindex >> $restoredata
+ echo -A $czfsecondindex -s `ipcalc -n $czfip/26|grep Network|cut -f 4 -d \ ` -o $wan2 -j $czfthirdindex >> $restoredata
+ echo -A $czfsecondindex -s `ipcalc -n $czfip/26|grep Network|cut -f 4 -d \ ` -o $wan3 -j $czfthirdindex >> $restoredata
+ fi
+
+ echo -A $czfthirdindex -s $czfip/32 -o $wan1 -j SNAT --to-source $pubip >> $restoredata
+ echo -A $czfthirdindex -s $czfip/32 -o $wan2 -j SNAT --to-source $pubip >> $restoredata
+ echo -A $czfthirdindex -s $czfip/32 -o $wan3 -j SNAT --to-source $pubip >> $restoredata
+ echo -A $czfthirdindex -s $czfip/32 -o $wan1 -j ACCEPT >> $restoredata
+ echo -A $czfthirdindex -s $czfip/32 -o $wan2 -j ACCEPT >> $restoredata
+ echo -A $czfthirdindex -s $czfip/32 -o $wan3 -j ACCEPT >> $restoredata
+
+ echo -n .
+done
+echo " done."
+
+echo COMMIT >> $restoredata