[rhn-users] How to modify fedora's NAT type?

[rhn-users]

Hi all,

        My OS is fedora3. I use the OS to be a NAT Server. I find the NAT
type is symmetric cone. How to modify its NAT type. I want a full cone.
Thanks for any idea.

     Following is my NAT's shell script:

         

echo "1" > /proc/sys/net/ipv4/ip_forward 
modprobe ip_tables 
modprobe ip_nat_ftp 
modprobe ip_nat_irc 
modprobe ip_conntrack 
modprobe ip_conntrack_ftp 
modprobe ip_conntrack_irc 
/sbin/iptables -F 
/sbin/iptables -X 
/sbin/iptables -Z 
/sbin/iptables -F -t nat 
/sbin/iptables -X -t nat 
/sbin/iptables -Z -t nat 
/sbin/iptables -P INPUT   DROP 
/sbin/iptables -P OUTPUT  ACCEPT 
/sbin/iptables -P FORWARD ACCEPT 
/sbin/iptables -t nat -P PREROUTING  ACCEPT 
/sbin/iptables -t nat -P POSTROUTING ACCEPT 
/sbin/iptables -t nat -P OUTPUT      ACCEPT 
/sbin/iptables -t nat -A POSTROUTING -o ppp0 -s 192.168.1.0/24 -j MASQUERADE

 

 

 

 

Tommy

 

 

 

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