Re: Redhat 9 and IP Masquerading
From: Stuart Sears (stuart_at_sjsears.com)
To: General Red Hat Linux discussion list <email@example.com> Date: Wed, 25 Aug 2004 19:42:29 +0100
On Wednesday 25 August 2004 18:14, Brian D. McGrew wrote:
> Good morning All:
hi Brian. A bit more info please...
> I'm trying to setup a Redhat 9 machine to do IP Masquerading on our
> internal network with a DSL modem. We're using an old Dell PE2300
> machine that seems to run the OS and X just fine. We've got two NIC's
> in the box, a Linksys and a Netgear; both are working. I can put the
> DSL on either card and get out to the world just fine.
from internal hosts or just from the RH9 box?
> However, on the internal network I can not see nor ping any host. The
> internal IP of the machine is 192.168.2.1 (which is the same as the old
> DSL router that was physically removed). I can't ping anything. I
> look at an ifconfig -a printout and it shows zero packets received but
> a whole lot of dropped packets.
have you turned on ip forwarding on your RH9 box?
then run sysctl -p
> I was always under the impression that I should be able to ping the
> 'router' from the internal network and I can not. I've looked at
> everything I can think of including 'Security Settings' and made sure
> that (for now) the firewall is turned off (No Firewall). What else
> should I be looking at here, any ideas?
to clarify here:
you cannot ping the internal IP of your RH9 box, correct?
or are you trying to ping hosts beyond it?
what is the default gateway on your internal hosts?
# netstat -rn
how are they connected to the RH9 box?
how have you set up the IP masquerading?
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