routing e dmz in multiple gw

["ninnig1@tin.it" <ninnig1@tin.it>]

hi, I have a big problem, I hope for your help.
I have two balanced 
ADSL: ADSL 1 and ADSL 2. This is the script.

#!/bin/bash

ip route add 
xx.yy.205.200/255.255.255.248 dev eth0 src xx.yy.205.202 table ADSL1
ip 
route add default via xx.yy.205.201 table ADSL1

ip route add xx.yy.
246.176/255.255.255.248 dev eth1 src xx.yy.246.178 table ADSL2
ip route 
add default via xx.yy.246.177 table ADSL2

ip rule add from xx.yy.
205.202 table ADSL1
ip rule add from xx.yy.246.178 table ADSL2

ip 
route add 127.0.0.0/8 dev lo table ADSL1
ip route add 127.0.0.0/8 dev 
lo table ADSL2

ip route add default scope global nexthop via xx.yy.
205.201 dev eth0 weight 1 nexthop via xx.yy.246.177 dev eth1 weight 1


ip route flush cache

echo "0" > /proc/sys/net/ipv4/conf/all/rp_filter

echo "0" > /proc/sys/net/ipv4/conf/eth0/rp_filter
echo "0" > 
/proc/sys/net/ipv4/conf/eth1/rp_filter
echo "0" > 
/proc/sys/net/ipv4/conf/eth2/rp_filter

Ever since it was to balance 
the traffic out everything was fine. Now I have the need to publish a 
server on the LAN on the internet.

The server in question 
(192.168.1.10) must be published with the address xx.yy.205.202 (ADSL1)


I thought so to set the configuration:

ip rule add fwmark 1 lookup 
ADSL1

iptables -t nat -A POSTROUTING -s 192.168.1.10 -o eth2 -j MARK --
set-mark 1
iptables -t nat -A POSTROUTING -s 192.168.1.10 -o eth0 -j 
SNAT --to-source xx.yy.205.202
iptables -t nat -A PREROUTING -p tcp -m 
tcp -d xx.yy.205.202/32 -i eth0 --dport 80 -j DNAT --to-destination 
192.168.1.10:80

This configuration don't work !!
the server comes out 
once the correct interface and once the wrong one

help me please !!!