[LARTC] Two internet lines and squid problem.

[LARTC] Two internet lines and squid problem.

[Stanislav Nedelchev]

I have 2 internet connections and i;m trying to use squid as transparent proxy 
but every time squid is using first internet line but i want to use
second internet line .
i have this settings and without squid it's working 
i have default route on the first internet connection.
iptables -t nat -I POSTROUTING -o eth2 -p tcp --dport 80 -s
192.168.0.0/24 -d ! 192.168.0.0/16 -j SNAT --to 217.10.248.135
/sbin/ip route add default via 217.10.248.135 dev eth2 table natips
/sbin/ip rule add fwmark 66 table natips

iptables -t mangle -I PREROUTING  -i eth1 -p tcp  --dport 80 -j MARK
--set-mark 66

iptables -t mangle -A FORWARD  -i eth1 -p tcp --dport 80  -j MARK --set-mark 66

I try to solve the problem moving squid to onother computer and i add 
additional rules like 
/sbin/ip route add default via 217.10.248.135 dev eth2 table natips
/sbin/ip route add default via 192.168.0.11 dev eth1 table squid
/sbin/ip route flush cache
/sbin/ip rule add fwmark 67 table squid
/sbin/ip rule add fwmark 66 table natips

iptables -t mangle -I PREROUTING  -i eth1 -p tcp -s 192.168.0.11
--dport 80 -j MARK --set-mark 66
iptables -t mangle -I PREROUTING  -i eth1 -p tcp -d ! 192.168.0.11 
--dport 80 -j MARK --set-mark 67


iptables -t mangle -A FOWARD  -i eth1 -s 192.168.0.11 -p tcp --dport
80 -j MARK --set-mark 66
iptables -t mangle -A FORWARD  -i eth1 -p tcp -s ! 192.168.0.11
--dport 80  -j MARK --set-mark 67
iptables -t nat -I POSTROUTING -o eth2 -p tcp --dport 80 -s
192.168.0.0/24 -d ! 192.168.0.0/16 -j SNAT --to 217.10.248.135
in this case web traffic is working but pages that uses SSL like gmail.com
is not working 
can anybody help me to use squid like transparent proxy with 2
internet connection and to use second one.
Thank in advance.
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Re: [LARTC] Two internet lines and squid problem.

[gypsy]

Stanislav Nedelchev wrote:
> 
> I have 2 internet connections and i;m trying to use squid as transparent proxy
> but every time squid is using first internet line but i want to use
> second internet line .
> i have this settings and without squid it's working
> i have default route on the first internet connection.
> iptables -t nat -I POSTROUTING -o eth2 -p tcp --dport 80 -s
> 192.168.0.0/24 -d ! 192.168.0.0/16 -j SNAT --to 217.10.248.135
> /sbin/ip route add default via 217.10.248.135 dev eth2 table natips
> /sbin/ip rule add fwmark 66 table natips
> 
> iptables -t mangle -I PREROUTING  -i eth1 -p tcp  --dport 80 -j MARK
> --set-mark 66
> 
> iptables -t mangle -A FORWARD  -i eth1 -p tcp --dport 80  -j MARK --set-mark 66
> 
> I try to solve the problem moving squid to onother computer and i add
> additional rules like
> /sbin/ip route add default via 217.10.248.135 dev eth2 table natips
> /sbin/ip route add default via 192.168.0.11 dev eth1 table squid
> /sbin/ip route flush cache
> /sbin/ip rule add fwmark 67 table squid
> /sbin/ip rule add fwmark 66 table natips
> 
> iptables -t mangle -I PREROUTING  -i eth1 -p tcp -s 192.168.0.11
> --dport 80 -j MARK --set-mark 66
> iptables -t mangle -I PREROUTING  -i eth1 -p tcp -d ! 192.168.0.11
> --dport 80 -j MARK --set-mark 67
> 
> iptables -t mangle -A FOWARD  -i eth1 -s 192.168.0.11 -p tcp --dport
> 80 -j MARK --set-mark 66
> iptables -t mangle -A FORWARD  -i eth1 -p tcp -s ! 192.168.0.11
> --dport 80  -j MARK --set-mark 67
> iptables -t nat -I POSTROUTING -o eth2 -p tcp --dport 80 -s
> 192.168.0.0/24 -d ! 192.168.0.0/16 -j SNAT --to 217.10.248.135
> in this case web traffic is working but pages that uses SSL like gmail.com
> is not working
> can anybody help me to use squid like transparent proxy with 2
> internet connection and to use second one.
> Thank in advance.

I don't know anything at all about squid, but I recall a posting here
regarding HTB and squid where the poster suggested a patch for squid. 
You might want to google "lartc squid patch" and see if there is
anything that helps.  You might also want to google lists.netfilter.org.
--
gypsy
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