IPTables not forwarding from public to private subnet.

I'm trying to use IPTables nat forwarding from public ip address to
internal subnet, but it's not relaying.

Public Ip address

207.202.xxx.xxx -> 10.0.0.100 (Linux router) -> 10.1.10.15 (Linux
machine.)

I can access the linux machine from 10.0.0.100's router.

I can access the Internet and the Linux router from the Linux machine.

I'm using the iptables command:

iptables -t nat -A PREROUTING -p tcp --dport 26 -j DNAT --to
10.1.10.15:26

I'm even disabled all of the DENY rules for forwarding.

--TJ



techjohnny@gmail.com

(E-Mail Removed) wrote:
> I'm trying to use IPTables nat forwarding from public ip address to
> internal subnet, but it's not relaying.
>
> Public Ip address
>
> 207.202.xxx.xxx -> 10.0.0.100 (Linux router) -> 10.1.10.15 (Linux
> machine.)
>
> I can access the linux machine from 10.0.0.100's router.
>
> I can access the Internet and the Linux router from the Linux machine.
>
> I'm using the iptables command:
>
> iptables -t nat -A PREROUTING -p tcp --dport 26 -j DNAT --to
> 10.1.10.15:26
>
> I'm even disabled all of the DENY rules for forwarding.
>
> --TJ
>

Did you remember to enable IP forwarding?

--

Tauno Voipio
tauno voipio (at) iki fi

On Sep 28, 11:37 am, Tauno Voipio <tauno.voi...@INVALIDiki.fi> wrote:
> techjoh...@gmail.com wrote:
> > I'm trying to use IPTables nat forwarding from public ip address to
> > internal subnet, but it's not relaying.
>
> > Public Ip address
>
> > 207.202.xxx.xxx -> 10.0.0.100 (Linux router) -> 10.1.10.15 (Linux
> > machine.)
>
> > I can access the linux machine from 10.0.0.100's router.
>
> > I can access the Internet and the Linux router from the Linux machine.
>
> > I'm using the iptables command:
>
> > iptables -t nat -A PREROUTING -p tcp --dport 26 -j DNAT --to
> > 10.1.10.15:26
>
> > I'm even disabled all of the DENY rules for forwarding.
>
> > --TJ
>
> Did you remember to enable IP forwarding?
>
> --
>
> Tauno Voipio
> tauno voipio (at) iki fi

Yup.