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Date:      Fri, 29 Mar 2002 15:25:47 +0100
From:      Thomas Hanson <klon@nybro.dk>
To:        freebsd-questions@FreeBSD.ORG
Subject:   natd static mapping for outgoing translation
Message-ID:  <4D0E007A80ACD84F95688E6E9B981AE209406D@odin.pop.k-net.dk>

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Hi
I have set up a freebsd 4.3 with natd. We have 2 external ip numbers (one
for the firewall/gateway, a.b.c.d , and one for our web/ftp server, e.f.g.h
)
I am using a static mapping (e.f.g.h) for the webserver, and that works fine
for traffic inwards. However when I use the webserver and go out to the
internet, the world sees it as ip a.b.c.d, but I want them to see it as ip
e.f.g.h. How do I do that? Here is part of my rc.conf :
 
gateway_enable="YES"
router_enable="YES"
ifconfig_rl0="inet a.b.c.d  netmask 255.255.255.248"
ifconfig_rl0_alias0="inet e.f.g.h  netmask 255.255.255.248"
ifconfig_rl1="inet 192.168.1.1 netmask 255.255.255.0"
firewall_enable="YES"
firewall_type="simple"
firewall_quiet="NO"
natd_enable="YES"
natd_interface="rl0"
natd_flags="-u -m -dynamic -redirect_address 192.168.1.3 e.f.g.h"
 
Thomas Hanson

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<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>Hi<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>I have set up a freebsd 4.3 with natd. We have 2 =
external ip
numbers (one for the firewall/gateway, <span class=3DGramE>a.b.c.d =
,</span> and
one for our web/ftp server, e.f.g.h )<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>I am using a static mapping (e.f.g.h) for the =
webserver, and
that works fine for traffic inwards. However when I use the webserver =
and go
out to the internet, the world sees it as ip a.b.c.d, but I want them =
to see it
as ip e.f.g.h. How do I do that? Here is part of my <span =
class=3DGramE>rc.conf :</span><o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>gateway_enable=3D&quot;YES&quot;<o:p></o:p></span></f=
ont></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>router_enable=3D&quot;YES&quot;<o:p></o:p></span></fo=
nt></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>ifconfig_rl0=3D&quot;inet <span =
class=3DGramE>a.b.c.d<span
style=3D'mso-spacerun:yes'>&nbsp; </span>netmask</span> =
255.255.255.248&quot;<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>ifconfig_rl0_alias0=3D&quot;inet <span =
class=3DGramE>e.f.g.h<span
style=3D'mso-spacerun:yes'>&nbsp; </span>netmask</span> =
255.255.255.248&quot;<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>ifconfig_rl1=3D&quot;inet 192.168.1.1 netmask
255.255.255.0&quot;<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>firewall_enable=3D&quot;YES&quot;<o:p></o:p></span></=
font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>firewall_type=3D&quot;simple&quot;<o:p></o:p></span><=
/font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>firewall_quiet=3D&quot;NO&quot;<o:p></o:p></span></fo=
nt></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>natd_enable=3D&quot;YES&quot;<o:p></o:p></span></font=
></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>natd_interface=3D&quot;rl0&quot;<o:p></o:p></span></f=
ont></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>natd_flags=3D&quot;-u -m -dynamic -redirect_address
192.168.1.3 e.f.g.h&quot;<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>Thomas Hanson<o:p></o:p></span></font></p>

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