I forgot to add,
that Manual Translation rules are always applied or executed before
Automatic Translation Rules.

-----Original Message-----
From: Previtera, Sal
Sent: Thursday, November 11, 2004 3:51 PM
To: 'Mailing list for discussion of Firewall-1'
Subject: RE: [FW-1] nat question

Create a Manual NAT rule in the Address Translation tab
where ORIGINAL PACKET....Source = 192.168.xx2.0. Destination 192.168.xx1.0
TRANSLATED PACKET  Source=Original Destination=Original

It will work, I am using such rule.
Regards,
Sal.

-----Original Message-----
From: Kim Longenbaugh [mailto:[EMAIL PROTECTED]
Sent: Thursday, November 11, 2004 2:09 PM
To: [EMAIL PROTECTED]
Subject: Re: [FW-1] nat question

We currently have the Nat configured on the internal interface, and it hides
behind an IP address on the subnet the external interface is on.  I.E., the
external interface is xxx.xxx.111.1 and the hide NAT address is
xxx.xxx.111.2.

our dmz is a private subnet, 192.168.xx1.0.  our internal subnet is
192.168.xx2.0.
My problem occurs because when a packet is destined from our internal
network to the dmz, it gets natted to xxx.xxx.111.2


>>> [EMAIL PROTECTED] 11/11/04 12:52PM >>>
Perhaps I misunderstood his question the way he asked "which interface
do you configure
nat on?".  You are correct, you configure it on the internetal network
object, but you tell
it to hide behind the external interface.

Hal

-----Original Message-----
From: Jon Allingham [mailto:[EMAIL PROTECTED]
Sent: Thursday, November 11, 2004 11:45 AM
To: [EMAIL PROTECTED]
Subject: Re: [FW-1] nat question


I set my NAT on the internal _network_ objects. That gives me more
flexibility as I have at least one network that has public IPs and does
not get NATed. I'm not sure how/why you would set NAT on an external
_network_ object as you don't usually have network objects for the
external network; at least I don't have any reason to. I think you can
set NAT globally on your firewall object to cover specific outbound
interfaces, but I haven't tried that and it wouldn't work for me anyway
unless I over-rode it somewhere else.

--
Jon Allingham
Director
Leapstone Systems


-----Original Message-----
From: Hal Dorsman [mailto:[EMAIL PROTECTED]
Sent: Thursday, November 11, 2004 12:41 PM
To: [EMAIL PROTECTED]
Subject: Re: [FW-1] nat question

External.  You want the internet thinking everything is coming from your

firewall, so you hide behind it's external legal IP.  Think of it from a
purely routing standpoint: the gateway back into your private network is
the external interface of your firewall.  To get everything back to your
private network it has to be sent to your firewall, so everything coming
from it has to appear to be from that.

Hal

-----Original Message-----
From: Kim Longenbaugh [mailto:[EMAIL PROTECTED]
Sent: Thursday, November 11, 2004 10:29 AM
To: [EMAIL PROTECTED]
Subject: [FW-1] nat question


OK, at the risk of sounding stupid, which interface do you configure
Hide NAT on so your internal network can browse the internet? Say you
have an external interface, a dmz interface, and an internal interface.
Say you want hosts on your internal network to get to the internet, and
you want them to appear to the outside world as xxx.xxx.xxx.20 (assuming
a public address) Do you configure Hide nat in the internal network
object, or on the external network object?

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