Hi all,
I have added a third NIC to my ASL 4 box to use for a DMZ.
Currently my LAN is setup with the following
Internal (eth0)
IP: 192.168.0.1 / 255.255.255.0
Gateway: none
External (eth1)
IP: (public IP) / (public mask)
Gateway: (public gw)
DMZ (eth2)
IP: 192.168.1.1 / 255.255.255.0
Gateway: none
So you see I'm attempting to use private IP's for my DMZ?
Is this OK? I know I will have to Masq the DMZ and setup the
appropriate rules so machines can get out to the Internet.
My problem is that I want to setup a Linux server in the DMZ
to host http, smtp, ssh. I assigned it the private IP
192.168.1.2/255.255.255.0 to it, but I do not know what
default gateway to assign. When I attempt to use route
to assign 192.168.0.1 the default gateway to it, it complains
that the network is unreachable. I can ping the external
interface and the dmz interface from this server in the dmz.
What am I doing wrong? What should I be doing? Is this a
valid configuration I am even attempting?
Any help on this would be greatly appreciated! I am desparate
to get this working. Thanks in advance for any help on this.
Thanks!
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