[GRLUG] Routing between subnets with iptables

[Michael Mol]

On Jan 16, 2013 10:29 PM, "L. V. Lammert" <lvl at omnitec.net> wrote:
>
> On Wed, 16 Jan 2013, megadave wrote:
>
> > Well, unless there is some existing iptables rule in place *stopping*
> > routing between the two networks, it should automatically..
> >
> It seems like the problem is that the two networks are offnet, as it does
> work fine from private -> public.
>
> > Is /proc/sys/net/ipv4/ip_forward set? If not, the box wont do any
> > direct routing at all.
> >
> Yep, .. the proxy server does work from 10.0.3 to the outside world, the
> problem is that we cannot connect between machines on the bunets.
>
> > If that still doesn't help, I'd have to know more about how the
> > network is setup..
> >
> External router         10.0.1.254
> Main server             10.0.1.200
> Proxy Server            10.0.1.253
>                         10.0.3.254
> Back Server             10.0.3.200
>
> Need to allow a connection from the Main Server on 1.200 to the Backoffice
> server on 3.200, .. which should be possible with an IPTables rule or
> pair.
>
> Any pointers or examples would be appreciated.
>
>         Thanks!
>
>         Lee
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ip route show

>From the router, a source box and a destination box. (For a non-working
case.)
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