Re: IP Forwarding works on local port but not a remote port

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Forgot to mention I'm on a Redhat Enterprise Linux 5 box with the
stock kernel.  Tried to compile my own and the build fails
immediately.  I assumed that since I can route requests locally, the
kernel was compiled properly for iptables.

On Fri, Feb 5, 2010 at 3:01 PM, Dan Daugherty <rescue@xxxxxxxxxxxxxx> wrote:
>> Are you using /16 netmask?
> No, I just took the 10.117 part off the ip's to shorten the message.
>>
>>
>> None of them got SNATed. Why? Should they go out through eth0? Try to
>> remove "-o eth0".
> Removed it and no change
>>
>> Also do you have ip.forwarding enabled (sysctl -a | grep forward")?
> net.ipv6.conf.eth0.forwarding = 0
> net.ipv6.conf.default.forwarding = 0
> net.ipv6.conf.all.forwarding = 0
> net.ipv6.conf.lo.forwarding = 0
> net.ipv4.conf.eth0.mc_forwarding = 0
> net.ipv4.conf.eth0.forwarding = 1
> net.ipv4.conf.lo.mc_forwarding = 0
> net.ipv4.conf.lo.forwarding = 1
> net.ipv4.conf.default.mc_forwarding = 0
> net.ipv4.conf.default.forwarding = 1
> net.ipv4.conf.all.mc_forwarding = 0
> net.ipv4.conf.all.forwarding = 1
>
>>
>> Can you reach 10.117.1.205:1521 from sethra (telnet 10.117.1.205 1521)?
>>
> Negative, but the command from sethra fails immediately with nothing
> showing in the logs
>
> There has also been mention of a FORWARD chain being necessary.  I
> haven't done anything outside of the commands listed in this thread.
>
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