Browsing is stopping with iptables
I have configured a Linux (fedora 11) server with Squid proxy and iptables based firewall.(it is normal proxy not a transperant one)
I have also enabled caching in the server.natting is enabled with
iptables -t nat -A POSTROUTING -o eth0 -j SNAT --to-source 188.8.131.52
ip_forwarding is also enabled.
the internal IP is given full access to the pool of 192.168.1.0/24.
I am facing a peculiar problem in the sense that browsing is working after 15 mins or so the browsing is stopping. After that if I am restarting the network services the browsing is again getting enabled.
The cache log is showing as the interface eth0 is destination unreachable.
Please urgently help me.