set up NAT (network address translation) on local server

[Les Mikesell]

Antonio Olivares wrote:
> 
> 
> --- On Wed, 11/19/08, Christopher K. Johnson <ckjohnson at gwi.net> wrote:
> 
>> From: Christopher K. Johnson <ckjohnson at gwi.net>
>> Subject: Re: set up NAT (network address translation) on local server
>> To: "Community assistance, encouragement, and advice for using Fedora." <fedora-list at redhat.com>
>> Date: Wednesday, November 19, 2008, 2:57 PM
>> What does this command produce? (shows whether your snat
>> rule is implemented correctly)
>> iptables -vnL -t nat
>>
>> And this one? (tells if ip forwarding is on)
>> cat /proc/sys/net/ipv4/ip_forward
>>
>> Chris
>>
>> --   "A society grows great when old men plant trees
>> whose shade they know
>>   they shall never sit in" - Greek Proverb
>>
>> -- fedora-list mailing list
> 
> 
> [olivares at localhost ~]$ su -
> Password:
> [root at localhost ~]# iptables -vnL -t nat
> Chain PREROUTING (policy ACCEPT 0 packets, 0 bytes)
>  pkts bytes target     prot opt in     out     source               destination
> 
> Chain POSTROUTING (policy ACCEPT 0 packets, 0 bytes)
>  pkts bytes target     prot opt in     out     source               destination
> 
> Chain OUTPUT (policy ACCEPT 0 packets, 0 bytes)
>  pkts bytes target     prot opt in     out     source               destination
> [root at localhost ~]# cat /proc/sys/net/ipv4/ip_forward
> 1
> [root at localhost ~]#

Try
modprobe iptable_nat
iptables -A POSTROUTING -t nat -o eth0 -j MASQUERADE

and make sure the host itself can ping the targets you are trying.

-- 
    Les Mikesell
    lesmikesell at gmail.com