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Started by Rob Sessink
Mon, 06 Jun 2011 08:45
nat-to and route-to specified in a single rule
Author: Rob Sessink
Date: Mon, 06 Jun 2011 08:45
Date: Mon, 06 Jun 2011 08:45
237 lines
11372 bytes
11372 bytes
This is a multi-part message in MIME format. ------_=_NextPart_001_01CC2420.8D1FD2CD Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Hello, In a multi-homed setup I am trying to route out packets over the secondary interface on which also NAT is done.=20 The environment consists of a OpenBSD 4.9 Firewall with 3 em interfaces, connected to 2 DSL providers em0: internal interface em1: first DSL=20 em2: second DSL I did dome testing with the understanding ruleset, where I have specified a nat-to and route-to statement in a single rule ########### rules ########### pass in log on em0 from 192.168.1.118 nat-to (e2gress:0) route-to (em2 80.100.x.x) pass out log on em2 ########### states ########### all icmp 74.125.77.104:8 <- 80.100.x.x:54000 (192.168.1.118:9035) 0:0 all icmp 80.100.x.x:54000 -> 74.125.77.104:8 0:0 This setup somewhat works. When pinging an upstream host, the packets get send out over the secondary interface, but the first packet is always dropped!=20 According to the pf.conf man page this rule specification is possible. My question is this kind of rule specification allowed and intended to be working in PF? =20 When splitting the nat-to / route-to statement in the ruleset everything works fine. ########### rules ########### pass in log on em0 from 192.168.1.118 route-to (em2 80.100.x.x) pass out log on em2 from 192.168.1.118 nat-to (em2:0) ########### states ########### all icmp 74.125.77.104:8 <- 192.168.1.118:8779 0:0 all icmp 80.100.x.x:9676 (192.168.1.118:8779) -> 74.125.77.104:8 0:0 Regards Rob=20 ------_=_NextPart_001_01CC2420.8D1FD2CD Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN"> <HTML> <HEAD> <META HTTP-EQUIV=3D"Content-Type" CONTENT=3D"text/html; = charset=3Dus-ascii"> <META NAME=3D"Generator" CONTENT=3D"MS Exchange Server version = 6.5.7654.12"> <TITLE>nat-to and route-to specified in a single rule</TITLE> </HEAD> <BODY> <!-- Converted from text/rtf format --> <P DIR=3DLTR><SPAN LANG=3D"nl"></SPAN><SPAN LANG=3D"nl"></SPAN><SPAN = LANG=3D"en-us"><FONT SIZE=3D2 FACE=3D"Calibri">Hello,</FONT></SPAN></P> <P DIR=3DLTR><SPAN LANG=3D"en-us"><FONT SIZE=3D2 FACE=3D"Calibri">In a = multi-homed setup I am trying to route</FONT></SPAN><SPAN = LANG=3D"nl"></SPAN><SPAN LANG=3D"nl"></SPAN><SPAN LANG=3D"en-us"><FONT = SIZE=3D2 FACE=3D"Calibri"> out packets over the secondary interface on = which also NAT is done. </FONT></SPAN></P> <P DIR=3DLTR><SPAN LANG=3D"en-us"><FONT SIZE=3D2 FACE=3D"Calibri">The = environment consists of a OpenBSD 4.9 Firewall with 3 em interfaces, = connected to 2 DSL providers</FONT></SPAN></P> <P DIR=3DLTR><SPAN LANG=3D"en-us"><FONT SIZE=3D2 FACE=3D"Calibri">em0: = internal interface</FONT></SPAN></P> <P DIR=3DLTR><SPAN LANG=3D"en-us"><FONT SIZE=3D2 FACE=3D"Calibri">em1: = first DSL </FONT></SPAN></P> <P DIR=3DLTR><SPAN LANG=3D"en-us"><FONT SIZE=3D2 FACE=3D"Calibri">em2: = second DSL</FONT></SPAN></P> <P DIR=3DLTR><SPAN LANG=3D"en-us"><FONT SIZE=3D2 FACE=3D"Calibri">I did = dome testing with the understanding ruleset, where I have specified a = nat-to and route-to statement in a single rule</FONT></SPAN></P> <P DIR=3DLTR><SPAN LANG=3D"en-us"><FONT SIZE=3D2 = FACE=3D"Calibri">########### rules ###########</FONT></SPAN></P> <P DIR=3DLTR><SPAN LANG=3D"nl"></SPAN><SPAN LANG=3D"nl"></SPAN><SPAN = LANG=3D"en-us"><FONT SIZE=3D2 FACE=3D"Calibri">pass in log on em0 = from 192.168.1.118 nat-to (e2gress:0) route-to (em2 = 80.1</FONT></SPAN><SPAN LANG=3D"nl"></SPAN><SPAN = LANG=3D"nl"></SPAN><SPAN LANG=3D"en-us"><FONT SIZE=3D2 = FACE=3D"Calibri">00</FONT></SPAN><SPAN LANG=3D"nl"></SPAN><SPAN = LANG=3D"nl"></SPAN><SPAN LANG=3D"en-us"><FONT SIZE=3D2 = FACE=3D"Calibri">.</FONT></SPAN><SPAN LANG=3D"nl"></SPAN><SPAN = LANG=3D"nl"></SPAN><SPAN LANG=3D"en-us"><FONT SIZE=3D2 = FACE=3D"Calibri">x</FONT></SPAN><SPAN LANG=3D"nl"></SPAN><SPAN = LANG=3D"nl"></SPAN><SPAN LANG=3D"en-us"><FONT SIZE=3D2 = FACE=3D"Calibri">.</FONT></SPAN><SPAN LANG=3D"nl"></SPAN><SPAN = LANG=3D"nl"></SPAN><SPAN LANG=3D"en-us"><FONT SIZE=3D2 = FACE=3D"Calibri">x</FONT></SPAN><SPAN LANG=3D"nl"></SPAN><SPAN = LANG=3D"nl"></SPAN><SPAN LANG=3D"en-us"><FONT SIZE=3D2 = FACE=3D"Calibri">)</FONT></SPAN></P> <P DIR=3DLTR><SPAN LANG=3D"en-us"><FONT SIZE=3D2 FACE=3D"Calibri">pass = out log on em2</FONT></SPAN><SPAN LANG=3D"nl"></SPAN><SPAN = LANG=3D"nl"></SPAN><SPAN LANG=3D"en-us"></SPAN></P> <P DIR=3DLTR><SPAN LANG=3D"en-us"><FONT SIZE=3D2 = FACE=3D"Calibri">########### states ###########</FONT></SPAN></P> <P DIR=3DLTR><SPAN LANG=3D"nl"></SPAN><SPAN LANG=3D"nl"></SPAN><SPAN = LANG=3D"en-us"><FONT SIZE=3D2 FACE=3D"Calibri">all icmp 74.125.77.104:8 = <- 80.1</FONT></SPAN><SPAN LANG=3D"nl"></SPAN><SPAN = LANG=3D"nl"></SPAN><SPAN LANG=3D"en-us"><FONT SIZE=3D2 = FACE=3D"Calibri">00</FONT></SPAN><SPAN LANG=3D"nl"></SPAN><SPAN = LANG=3D"nl"></SPAN><SPAN LANG=3D"en-us"><FONT SIZE=3D2 = FACE=3D"Calibri">.</FONT></SPAN><SPAN LANG=3D"nl"></SPAN><SPAN = LANG=3D"nl"></SPAN><SPAN LANG=3D"en-us"><FONT SIZE=3D2 = FACE=3D"Calibri">x</FONT></SPAN><SPAN LANG=3D"nl"></SPAN><SPAN = LANG=3D"nl"></SPAN><SPAN LANG=3D"en-us"><FONT SIZE=3D2 = FACE=3D"Calibri">.</FONT></SPAN><SPAN LANG=3D"nl"></SPAN><SPAN = LANG=3D"nl"></SPAN><SPAN LANG=3D"en-us"><FONT SIZE=3D2 = FACE=3D"Calibri">x</FONT></SPAN><SPAN LANG=3D"nl"></SPAN><SPAN = LANG=3D"nl"></SPAN><SPAN LANG=3D"en-us"><FONT SIZE=3D2 = FACE=3D"Calibri">:54000 = (192.168.1.118:9035) = 0:0</FONT></SPAN></P> <P DIR=3DLTR><SPAN LANG=3D"en-us"><FONT SIZE=3D2 FACE=3D"Calibri">all = icmp 80.1</FONT></SPAN><SPAN LANG=3D"nl"></SPAN><SPAN = LANG=3D"nl"></SPAN><SPAN LANG=3D"en-us"><FONT SIZE=3D2 = FACE=3D"Calibri">00</FONT></SPAN><SPAN LANG=3D"nl"></SPAN><SPAN = LANG=3D"nl"></SPAN><SPAN LANG=3D"en-us"><FONT SIZE=3D2 = FACE=3D"Calibri">.</FONT></SPAN><SPAN LANG=3D"nl"></SPAN><SPAN = LANG=3D"nl"></SPAN><SPAN LANG=3D"en-us"><FONT SIZE=3D2 = FACE=3D"Calibri">x</FONT></SPAN><SPAN LANG=3D"nl"></SPAN><SPAN = LANG=3D"nl"></SPAN><SPAN LANG=3D"en-us"><FONT SIZE=3D2 = FACE=3D"Calibri">.</FONT></SPAN><SPAN LANG=3D"nl"></SPAN><SPAN = LANG=3D"nl"></SPAN><SPAN LANG=3D"en-us"><FONT SIZE=3D2 = FACE=3D"Calibri">x</FONT></SPAN><SPAN LANG=3D"nl"></SPAN><SPAN = LANG=3D"nl"></SPAN><SPAN LANG=3D"en-us"><FONT SIZE=3D2 = FACE=3D"Calibri">:54000 -> = 74.125.77.104:8 = 0:0</FONT></SPAN><SPAN LANG=3D"nl"></SPAN><SPAN LANG=3D"nl"></SPAN><SPAN = LANG=3D"en-us"></SPAN></P> <P DIR=3DLTR><SPAN LANG=3D"en-us"><FONT SIZE=3D2 FACE=3D"Calibri">This = setup somewhat works. When pinging an upstream host, the packets get = send out over the secondary interface, but the first packet is always = dropped! </FONT></SPAN></P> <P DIR=3DLTR><SPAN LANG=3D"en-us"><FONT SIZE=3D2 = FACE=3D"Calibri">According to the pf.conf man page this rule = specification is possible. My question is this kind of rule = specification allowed and intended to be working in = PF?</FONT></SPAN></P> <P DIR=3DLTR><SPAN LANG=3D"en-us"><FONT SIZE=3D2 = FACE=3D"Calibri"> </FONT></SPAN></P> <P DIR=3DLTR><SPAN LANG=3D"en-us"><FONT SIZE=3D2 FACE=3D"Calibri">When = splitting the nat-to / route-to statement in the ruleset everything = works fine.</FONT></SPAN></P> <P DIR=3DLTR><SPAN LANG=3D"en-us"><FONT SIZE=3D2 = FACE=3D"Calibri">########### rules ###########</FONT></SPAN></P> <P DIR=3DLTR><SPAN LANG=3D"nl"></SPAN><SPAN LANG=3D"nl"></SPAN><SPAN = LANG=3D"en-us"><FONT SIZE=3D2 FACE=3D"Calibri">pass in log on em0 = from 192.168.1.118 route-to (em2 80.1</FONT></SPAN><SPAN = LANG=3D"nl"></SPAN><SPAN LANG=3D"nl"></SPAN><SPAN LANG=3D"en-us"><FONT = SIZE=3D2 FACE=3D"Calibri">00</FONT></SPAN><SPAN LANG=3D"nl"></SPAN><SPAN = LANG=3D"nl"></SPAN><SPAN LANG=3D"en-us"><FONT SIZE=3D2 = FACE=3D"Calibri">.</FONT></SPAN><SPAN LANG=3D"nl"></SPAN><SPAN = LANG=3D"nl"></SPAN><SPAN LANG=3D"en-us"><FONT SIZE=3D2 = FACE=3D"Calibri">x</FONT></SPAN><SPAN LANG=3D"nl"></SPAN><SPAN = LANG=3D"nl"></SPAN><SPAN LANG=3D"en-us"><FONT SIZE=3D2 = FACE=3D"Calibri">.</FONT></SPAN><SPAN LANG=3D"nl"></SPAN><SPAN = LANG=3D"nl"></SPAN><SPAN LANG=3D"en-us"><FONT SIZE=3D2 = FACE=3D"Calibri">x</FONT></SPAN><SPAN LANG=3D"nl"></SPAN><SPAN = LANG=3D"nl"></SPAN><SPAN LANG=3D"en-us"><FONT SIZE=3D2 = FACE=3D"Calibri">)</FONT></SPAN></P> <P DIR=3DLTR><SPAN LANG=3D"en-us"><FONT SIZE=3D2 FACE=3D"Calibri">pass = out log on em2 from 192.168.1.118 nat-to (em2:0)</FONT></SPAN><SPAN = LANG=3D"nl"></SPAN><SPAN LANG=3D"nl"></SPAN><SPAN = LANG=3D"en-us"></SPAN></P> <P DIR=3DLTR><SPAN LANG=3D"en-us"><FONT SIZE=3D2 = FACE=3D"Calibri">########### states ###########</FONT></SPAN></P> <P DIR=3DLTR><SPAN LANG=3D"nl"></SPAN><SPAN LANG=3D"nl"></SPAN><SPAN = LANG=3D"en-us"><FONT SIZE=3D2 FACE=3D"Calibri">all icmp 74.125.77.104:8 = <- 192.168.1.118:8779 = 0:0</FONT></SPAN></P> <P DIR=3DLTR><SPAN LANG=3D"en-us"><FONT SIZE=3D2 FACE=3D"Calibri">all = icmp 80.1</FONT></SPAN><SPAN LANG=3D"nl"></SPAN><SPAN = LANG=3D"nl"></SPAN><SPAN LANG=3D"en-us"><FONT SIZE=3D2 = FACE=3D"Calibri">00</FONT></SPAN><SPAN LANG=3D"nl"></SPAN><SPAN = LANG=3D"nl"></SPAN><SPAN LANG=3D"en-us"><FONT SIZE=3D2 = FACE=3D"Calibri">.</FONT></SPAN><SPAN LANG=3D"nl"></SPAN><SPAN = LANG=3D"nl"></SPAN><SPAN LANG=3D"en-us"><FONT SIZE=3D2 = FACE=3D"Calibri">x</FONT></SPAN><SPAN LANG=3D"nl"></SPAN><SPAN = LANG=3D"nl"></SPAN><SPAN LANG=3D"en-us"><FONT SIZE=3D2 = FACE=3D"Calibri">.</FONT></SPAN><SPAN LANG=3D"nl"></SPAN><SPAN = LANG=3D"nl"></SPAN><SPAN LANG=3D"en-us"><FONT SIZE=3D2 = FACE=3D"Calibri">x</FONT></SPAN><SPAN LANG=3D"nl"></SPAN><SPAN = LANG=3D"nl"></SPAN><SPAN LANG=3D"en-us"><FONT SIZE=3D2 = FACE=3D"Calibri">:9676 (192.168.1.118:8779) -> = 74.125.77.104:8 = 0:0</FONT></SPAN></P> <P DIR=3DLTR><SPAN LANG=3D"nl"></SPAN><SPAN LANG=3D"nl"></SPAN><SPAN = LANG=3D"en-us"></SPAN></P> <P DIR=3DLTR><SPAN = LANG=3D"en-us"> <FONT SIZE=3D2 = FACE=3D"Calibri">Regards Rob </FONT></SPAN></P> <P DIR=3DLTR><SPAN LANG=3D"nl"></SPAN><SPAN LANG=3D"nl"></SPAN><SPAN = LANG=3D"nl"></SPAN></P> </BODY> </HTML> ------_=_NextPart_001_01CC2420.8D1FD2CD--
Re: nat-to and route-to specified in a single rule
Author: Bojidara Marinchovska
Date: Tue, 07 Jun 2011 12:44
Date: Tue, 07 Jun 2011 12:44
252 lines
13431 bytes
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Hello,
pass in on $int_if from $network nat-to $ext_if is different from
pass out on $ext_if from $network nat-to $ext_if
Also from pf.conf(5)
nat-to is usually applied outbound. If applied inbound,
nat-to
to a local IP address is not supported.
On 06/06/11 11:05, Rob Sessink wrote:
>
> Hello,
>
> In a multi-homed setup I am trying to routeout packets over the
> secondary interface on which also NAT is done.
>
> The environment consists of a OpenBSD 4.9 Firewall with 3 em
> interfaces, connected to 2 DSL providers
>
> em0: internal interface
>
> em1: first DSL
>
> em2: second DSL
>
> I did dome testing with the understanding ruleset, where I have
> specified a nat-to and route-to statement in a single rule
>
> ########### rules ###########
>
> pass in log on em0 from 192.168.1.118 nat-to (e2gress:0) route-to
> (em2 80.100.x.x)
>
> pass out log on em2
>
> ########### states ###########
>
> all icmp 74.125.77.104:8 <- 80.100.x.x:54000
> (192.168.1.118:9035) 0:0
>
> all icmp 80.100.x.x:54000 -> 74.125.77.104:8 0:0
>
> This setup somewhat works. When pinging an upstream host, the packets
> get send out over the secondary interface, but the first packet is
> always dropped!
>
> According to the pf.conf man page this rule specification is possible.
> My question is this kind of rule specification allowed and intended to
> be working in PF?
>
> When splitting the nat-to / route-to statement in the ruleset
> everything works fine.
>
> ########### rules ###########
>
> pass in log on em0 from 192.168.1.118 route-to (em2 80.100.x.x)
>
> pass out log on em2 from 192.168.1.118 nat-to (em2:0)
>
> ########### states ###########
>
> all icmp 74.125.77.104:8 <- 192.168.1.118:8779 0:0
>
> all icmp 80.100.x.x:9676 (192.168.1.118:8779) -> 74.125.77.104:8 0:0
>
> Regards Rob
>
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Hello,<br>
<br>
pass in on $int_if from $network nat-to $ext_if is different from<br>
pass out on $ext_if from $network nat-to $ext_if<br>
<br>
<br>
Also from pf.conf(5)<br>
<br>
nat-to is usually applied outbound. If applied
inbound, nat-to<br>
to a local IP address is not supported.<br>
<br>
<br>
<br>
<br>
On 06/06/11 11:05, Rob Sessink wrote:
<blockquote
cite="mid:5A7F701214D1B0498A66980564DF31230B89C52C@tbg-vms.tbg.lan"
type="cite">
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<title>nat-to and route-to specified in a single rule</title>
<!-- Converted from text/rtf format -->
<p dir="LTR"><span lang="nl"></span><span lang="nl"></span><span
lang="en-us"><font face="Calibri" size="2">Hello,</font></span></p>
<p dir="LTR"><span lang="en-us"><font face="Calibri" size="2">In a
multi-homed setup I am trying to route</font></span><span
lang="nl"></span><span lang="nl"></span><span lang="en-us"><font
face="Calibri" size="2"> out packets over the secondary
interface on which also NAT is done. </font></span></p>
<p dir="LTR"><span lang="en-us"><font face="Calibri" size="2">The
environment consists of a OpenBSD 4.9 Firewall with 3 em
interfaces, connected to 2 DSL providers</font></span></p>
<p dir="LTR"><span lang="en-us"><font face="Calibri" size="2">em0:
internal interface</font></span></p>
<p dir="LTR"><span lang="en-us"><font face="Calibri" size="2">em1:
first DSL </font></span></p>
<p dir="LTR"><span lang="en-us"><font face="Calibri" size="2">em2:
second DSL</font></span></p>
<p dir="LTR"><span lang="en-us"><font face="Calibri" size="2">I
did dome testing with the understanding ruleset, where I
have specified a nat-to and route-to statement in a single
rule</font></span></p>
<p dir="LTR"><span lang="en-us"><font face="Calibri" size="2">###########
rules ###########</font></span></p>
<p dir="LTR"><span lang="nl"></span><span lang="nl"></span><span
lang="en-us"><font face="Calibri" size="2">pass in log on em0
from 192.168.1.118 nat-to (e2gress:0) route-to (em2 80.1</font></span><span
lang="nl"></span><span lang="nl"></span><span lang="en-us"><font
face="Calibri" size="2">00</font></span><span lang="nl"></span><span
lang="nl"></span><span lang="en-us"><font face="Calibri"
size="2">.</font></span><span lang="nl"></span><span
lang="nl"></span><span lang="en-us"><font face="Calibri"
size="2">x</font></span><span lang="nl"></span><span
lang="nl"></span><span lang="en-us"><font face="Calibri"
size="2">.</font></span><span lang="nl"></span><span
lang="nl"></span><span lang="en-us"><font face="Calibri"
size="2">x</font></span><span lang="nl"></span><span
lang="nl"></span><span lang="en-us"><font face="Calibri"
size="2">)</font></span></p>
<p dir="LTR"><span lang="en-us"><font face="Calibri" size="2">pass
out log on em2</font></span><span lang="nl"></span><span
lang="nl"></span><span lang="en-us"></span></p>
<p dir="LTR"><span lang="en-us"><font face="Calibri" size="2">###########
states ###########</font></span></p>
<p dir="LTR"><span lang="nl"></span><span lang="nl"></span><span
lang="en-us"><font face="Calibri" size="2">all icmp
74.125.77.104:8 <- 80.1</font></span><span lang="nl"></span><span
lang="nl"></span><span lang="en-us"><font face="Calibri"
size="2">00</font></span><span lang="nl"></span><span
lang="nl"></span><span lang="en-us"><font face="Calibri"
size="2">.</font></span><span lang="nl"></span><span
lang="nl"></span><span lang="en-us"><font face="Calibri"
size="2">x</font></span><span lang="nl"></span><span
lang="nl"></span><span lang="en-us"><font face="Calibri"
size="2">.</font></span><span lang="nl"></span><span
lang="nl"></span><span lang="en-us"><font face="Calibri"
size="2">x</font></span><span lang="nl"></span><span
lang="nl"></span><span lang="en-us"><font face="Calibri"
size="2">:54000 (192.168.1.118:9035) 0:0</font></span></p>
<p dir="LTR"><span lang="en-us"><font face="Calibri" size="2">all
icmp 80.1</font></span><span lang="nl"></span><span
lang="nl"></span><span lang="en-us"><font face="Calibri"
size="2">00</font></span><span lang="nl"></span><span
lang="nl"></span><span lang="en-us"><font face="Calibri"
size="2">.</font></span><span lang="nl"></span><span
lang="nl"></span><span lang="en-us"><font face="Calibri"
size="2">x</font></span><span lang="nl"></span><span
lang="nl"></span><span lang="en-us"><font face="Calibri"
size="2">.</font></span><span lang="nl"></span><span
lang="nl"></span><span lang="en-us"><font face="Calibri"
size="2">x</font></span><span lang="nl"></span><span
lang="nl"></span><span lang="en-us"><font face="Calibri"
size="2">:54000 -> 74.125.77.104:8 0:0</font></span><span
lang="nl"></span><span lang="nl"></span><span lang="en-us"></span></p>
<p dir="LTR"><span lang="en-us"><font face="Calibri" size="2">This
setup somewhat works. When pinging an upstream host, the
packets get send out over the secondary interface, but the
first packet is always dropped! </font></span></p>
<p dir="LTR"><span lang="en-us"><font face="Calibri" size="2">According
to the pf.conf man page this rule specification is possible.
My question is this kind of rule specification allowed and
intended to be working in PF?</font></span></p>
<p dir="LTR"><span lang="en-us"><font face="Calibri" size="2"> </font></span></p>
<p dir="LTR"><span lang="en-us"><font face="Calibri" size="2">When
splitting the nat-to / route-to statement in the ruleset
everything works fine.</font></span></p>
<p dir="LTR"><span lang="en-us"><font face="Calibri" size="2">###########
rules ###########</font></span></p>
<p dir="LTR"><span lang="nl"></span><span lang="nl"></span><span
lang="en-us"><font face="Calibri" size="2">pass in log on em0
from 192.168.1.118 route-to (em2 80.1</font></span><span
lang="nl"></span><span lang="nl"></span><span lang="en-us"><font
face="Calibri" size="2">00</font></span><span lang="nl"></span><span
lang="nl"></span><span lang="en-us"><font face="Calibri"
size="2">.</font></span><span lang="nl"></span><span
lang="nl"></span><span lang="en-us"><font face="Calibri"
size="2">x</font></span><span lang="nl"></span><span
lang="nl"></span><span lang="en-us"><font face="Calibri"
size="2">.</font></span><span lang="nl"></span><span
lang="nl"></span><span lang="en-us"><font face="Calibri"
size="2">x</font></span><span lang="nl"></span><span
lang="nl"></span><span lang="en-us"><font face="Calibri"
size="2">)</font></span></p>
<p dir="LTR"><span lang="en-us"><font face="Calibri" size="2">pass
out log on em2 from 192.168.1.118 nat-to (em2:0)</font></span><span
lang="nl"></span><span lang="nl"></span><span lang="en-us"></span></p>
<p dir="LTR"><span lang="en-us"><font face="Calibri" size="2">###########
states ###########</font></span></p>
<p dir="LTR"><span lang="nl"></span><span lang="nl"></span><span
lang="en-us"><font face="Calibri" size="2">all icmp
74.125.77.104:8 <- 192.168.1.118:8779 0:0</font></span></p>
<p dir="LTR"><span lang="en-us"><font face="Calibri" size="2">all
icmp 80.1</font></span><span lang="nl"></span><span
lang="nl"></span><span lang="en-us"><font face="Calibri"
size="2">00</font></span><span lang="nl"></span><span
lang="nl"></span><span lang="en-us"><font face="Calibri"
size="2">.</font></span><span lang="nl"></span><span
lang="nl"></span><span lang="en-us"><font face="Calibri"
size="2">x</font></span><span lang="nl"></span><span
lang="nl"></span><span lang="en-us"><font face="Calibri"
size="2">.</font></span><span lang="nl"></span><span
lang="nl"></span><span lang="en-us"><font face="Calibri"
size="2">x</font></span><span lang="nl"></span><span
lang="nl"></span><span lang="en-us"><font face="Calibri"
size="2">:9676 (192.168.1.118:8779) ->
74.125.77.104:8 0:0</font></span></p>
<p dir="LTR"><span lang="nl"></span><span lang="nl"></span><span
lang="en-us"></span></p>
<p dir="LTR"><span lang="en-us"> <font face="Calibri"
size="2">Regards Rob </font></span></p>
<p dir="LTR"><span lang="nl"></span><span lang="nl"></span><span
lang="nl"></span></p>
</blockquote>
<br>
</body>
</html>
--------------010909050008020804050401--
Re: nat-to and route-to specified in a single rule
Author: Stuart Henderson
Date: Tue, 07 Jun 2011 17:13
Date: Tue, 07 Jun 2011 17:13
9 lines
1356 bytes
1356 bytes
On 2011/06/07 17:36, Rob Sessink wrote: > You’re right, looking again at this rule, it is unwanted to do > the NAT on the inbound packets of the internal interface when the > firewall is connected to multiple networks/interfaces. > > Thanks for the pointer to pf.conf(5). But what is meant with the > statement a ‘local IP address’ in this context?. An address on the local machine.
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