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Re: [FW-1] NAT issue



If i were you i would remove the rule in your rule base that allows traffic
from your DMZ segment to your internal lan segment.  DMZ segments are
designed so that they remain seperate from your internal lan.  If one of
your machines on your DMZ would for some reason be comprimised then which
ever host was taken down will have trust to your internal segment.  Just and
FYI


----- Original Message -----
From: "Andrew Loh" <[email protected]>
To: <[email protected]>
Sent: Thursday, December 13, 2001 1:18 PM
Subject: Re: [FW-1] NAT issue


> I think you need to check up the log whether nated internal lan are
> translated when connecting to dmz.
>
> Try manually add a NAT rule the top.
>                      Original                             Translated
>
> Dmz-net   internal-net   any     original  original  original
> Internal-net     Dmz-net  any    original original original
>
> Andrew.
>
> -----Original Message-----
> From: The UNIX Mighty! [mailto:[email protected]]
> Sent: Friday, December 14, 2001 12:52 AM
> To: [email protected]
> Subject: [FW-1] NAT issue
>
>
> hey folks,
>
> whenever I connect to any dmz-ip which are nated from internal lan, the
> connection is really slow. NON nated ip are rocket fast.
>
> any suggestions? below is the info on the firewall setup
>
> Thanks
> -Bikesh-
> [email protected]
>
> os: solaris
> fw: VPN-1(TM) & FireWall-1(R) Version 4.1 Build 41510 [VPN + DES +
> STRONG]
>
> my current fw config is 3 interface: exteral, dmz, internal
> my rules are as follows
> 1) dmz-net              internal-net    any     accept
> 2) internal-net         dmz-net         any     accept
> 3) internal-net         any             http    accept
> 4) dmz-net              any             any     accept
> 5) any                  dmz-ip-1        http    accept
>    any                  dmz-ip-2        http    accept
> 6) any                  any             any     drop
>
>
> nat rules are as follows
> hostname        dmz-ip          outside-ip
> dmz-ip1         172.16.1.1      <outside-ip-1> static
> dmz-ip2         172.16.1.2      <outside-ip-2> static
> dmz-net         172.16.1.0      <firewall-ip>  hide
> internal-inet   172.18.1.0      <firewall-ip>  hide
>
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