Dear All On my CentOS 5 , I installed the Asterisk 1.4.13 and DECT application software and then when I want to try for "NAT" I issue as the followings : #iptables -t nat -A POSTROUTING -s 10.20.30.0/24 -o eth0 -j MASQUERADE But it didn't get through . So I checked if the "NAT" is enabled on my CentOS server , as the followings : #echo "1" > /proc/sys/net/ipv4/ip_forward But still I cannot try for "NAT" . Can you please let me know which other setings maybe influenced and need to be checked for enabling the "NAT" ? Thank you in advance -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.centos.org/pipermail/centos/attachments/20091123/af3b3d85/attachment-0004.html>