Balanceamento de Link

Pessoal,

Eu estou criando um esquema de balancemento de link, e criei algumas regras do iptables que eu imagino que estarão implementando essa funcionalidade, porém, não sei qual vai ser o comportamento do squid, ele consguirá entender esse esquema de balancemento???

segue abaixo as regras : o script não está completo aqui, só as regars de redirecionamento

$iptables -t nat -A POSTROUTING -d 192.168.1.0/255.255.255.0 -j SNAT --to-source $IP_INTERNO
$iptables -t nat -A POSTROUTING -s 192.168.1.1/255.255.255.0 -j SNAT --to-source $IP_CABLE
$iptables -t nat -A POSTROUTING -s 192.168.1.2/255.255.255.0 -j SNAT --to-source $IP_CABLE
$iptables -t nat -A POSTROUTING -s 192.168.1.3/255.255.255.0 -j SNAT --to-source $IP_CABLE
$iptables -t nat -A POSTROUTING -s 192.168.1.4/255.255.255.0 -j SNAT --to-source $IP_CABLE
$iptables -t nat -A POSTROUTING -s 192.168.1.5/255.255.255.0 -j SNAT --to-source $IP_CABLE
$iptables -t nat -A POSTROUTING -s 192.168.1.6/255.255.255.0 -j SNAT --to-source $IP_CABLE
$iptables -t nat -A POSTROUTING -s 192.168.1.7/255.255.255.0 -j SNAT --to-source $IP_CABLE
$iptables -t nat -A POSTROUTING -s 192.168.1.8/255.255.255.0 -j SNAT --to-source $IP_CABLE
$iptables -t nat -A POSTROUTING -s 192.168.1.9/255.255.255.0 -j SNAT --to-source $IP_ADSL
$iptables -t nat -A POSTROUTING -s 192.168.1.10/255.255.255.0 -j SNAT --to-source $IP_ADSL
$iptables -t nat -A POSTROUTING -s 192.168.1.11/255.255.255.0 -j SNAT --to-source $IP_ADSL
$iptables -t nat -A POSTROUTING -s 192.168.1.12/255.255.255.0 -j SNAT --to-source $IP_ADSL
$iptables -t nat -A POSTROUTING -s 192.168.1.13/255.255.255.0 -j SNAT --to-source $IP_ADSL
$iptables -t nat -A POSTROUTING -s 192.168.1.14/255.255.255.0 -j SNAT --to-source $IP_ADSL
$iptables -t nat -A POSTROUTING -s 192.168.1.15/255.255.255.0 -j SNAT --to-source $IP_ADSL
$iptables -t nat -A POSTROUTING -s 192.168.1.16/255.255.255.0 -j SNAT --to-source $IP_ADSL
$iptables -t nat -A POSTROUTING -s 192.168.1.17/255.255.255.0 -j SNAT --to-source $IP_ADSL