Sherine wrote:
> > > and everyone else, I am using RH 5.0 and I had disabled IP Forwarding on
> > > the machine in the kernel but for each time I do a reboot I see the
> > > message "Disabling IP Forwarding", which means it was enabled.
> >
> > No, it means that the init scripts are disabling it, regardless of
> > whether or not it was enabled by default.
>
> So you are saying that it is possible that it was disabled?
Yes. The `Disabling IP Forwarding' message will be printed regardless
of whether IP forwarding was already disabled in the kernel.
> The machine we are talking about is one that I've made into a
> firewall/proxy
> hence by disabling "IP Forwarding" I shouldn't be able to ping the network
> card to the LAN from the Internet, but I can. That's why I'm drawing the
> conclusion that it is still enabled.
A system will respond to any of its own IP addresses, regardless of
the interface on which a packet arrives.
To check that forwarding is disabled, type
cat /proc/sys/net/ipv4/ip_forward
If it displays `1', forwarding is enabled; if it displays `0',
forwarding is disabled.
--
Glynn Clements <[EMAIL PROTECTED]>
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