[CentOS] Inquiry:How to enable "NAT" on CentOS 5 ?

[hadi motamedi]

Sorry. It seems that I didn't illustrate what I mean correctly . I mean that
it is appeared to me that my CentOS 5 server will support for NAT by default
(as I checked it on VirtualBox) but after Asterisk & DECT installation it
does not . Can you please let me know which settings maybe influenced and
need to be double-checked ?
Thank you in advance



On Mon, Nov 23, 2009 at 7:54 AM, Barry Brimer <lists at brimer.org> wrote:

>  > 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" ?
>
> You have your outgoing traffic NATed .. but you need a PREROUTING rule to
> forward the traffic to your Asterisk server.
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