android_device_htc_leo/prebuilt/ppp/ip-up

#!/system/bin/sh

#/bin/touch /etc/ppp/ppp0.pid
#/bin/chmod 777 /etc/ppp/ppp0.pid

case $1 in
    ppp1)
        iptables --flush;
        iptables --table nat --flush;
        iptables --delete-chain;
        iptables --table nat --append POSTROUTING --out-interface ppp0 -j MASQUERADE;
        iptables --append FORWARD --in-interface ppp1 -j ACCEPT;
        echo 0 > /proc/sys/net/ipv4/ip_forward;
        echo 1 > /proc/sys/net/ipv4/ip_forward;
        ;;
    ppp0)
        echo "ip-up fired" > /tmp/ppp.log
        # /system/bin/setprop "net.interfaces.defaultroute" "gprs"
        ;;
esac

# Use interface name if linkname is not available
NAME=${LINKNAME:-$1}

/system/bin/touch /etc/ppp/ppp0.pid
/system/bin/chmod 777 /etc/ppp/ppp0.pid
/system/bin/echo $(pidof pppd) > /etc/ppp/ppp0.pid
echo "nameserver $DNS1" > /etc/ppp/resolv.conf
echo "nameserver $DNS2" >> /etc/ppp/resolv.conf

/system/bin/setprop "net.$NAME.dns1" "$DNS1"
/system/bin/setprop "net.$NAME.dns2" "$DNS2"
/system/bin/setprop "net.$NAME.local-ip" "$IPLOCAL"
/system/bin/setprop "net.$NAME.remote-ip" "$IPREMOTE"
/system/bin/setprop "net.dns1" "$DNS1"
/system/bin/setprop "net.dns2" "$DNS2"
modem_log()
{
        /bin/echo -e "${@}" >> /tmp/ppp.log
}
modem_log "Connection attempt SUCCESSFUL!"
modem_log "Phone IP:  `/system/xbin/ifconfig ppp0 | /system/xbin/grep 'inet addr:' | /system/xbin/cut -d':' -f2 | /system/xbin/cut -d' ' -f1`"
modem_log "Subnet  :  `/system/xbin/ifconfig ppp0 | /system/xbin/grep 'inet addr:' | /system/xbin/cut -d':' -f4 | /system/xbin/cut -d' ' -f1`"
modem_log "P-t-P   :  `/system/xbin/ifconfig ppp0 | /system/xbin/grep 'inet addr:' | /system/xbin/cut -d':' -f3 | /system/xbin/cut -d' ' -f1`"
modem_log "Done!"
sleep 1
/system/bin/setprop "net.dns1" "$DNS1"
/system/bin/setprop "net.dns2" "$DNS2"