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<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><a
href="http://www.linuxforums.org/forum/ntopic25532.html">http://www.linuxforums.org/forum/ntopic25532.html</a>
seems to suggest you need to fwd the packets using iptables as the default
routing is not doing nothing – not sure what lines need to be added in a
two-subnets though…<o:p></o:p></span></font></p>
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<p class=MsoNormal><b><font size=2 face=Tahoma><span lang=EN-US
style='font-size:10.0pt;font-family:Tahoma;font-weight:bold'>From:</span></font></b><font
size=2 face=Tahoma><span lang=EN-US style='font-size:10.0pt;font-family:Tahoma'>
Mark Broadbent [mailto:markb@wetlettuce.com] <br>
<b><span style='font-weight:bold'>Sent:</span></b> 28 October 2004 9:03 PM<br>
<b><span style='font-weight:bold'>To:</span></b> chris@logics.co.uk;
Herefordshire Linux Users Group.<br>
<b><span style='font-weight:bold'>Cc:</span></b> mherbert@redhat.com<br>
<b><span style='font-weight:bold'>Subject:</span></b> RE: [Herefordshire]
Routing two subnets</span></font><span lang=EN-US><o:p></o:p></span></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>On Thu, 2004-10-28 at 20:43 +0100, Chris Bond wrote: <o:p></o:p></span></font></p>
<pre><font size=2 face="Courier New"><span style='font-size:10.0pt'><o:p> </o:p></span></font></pre><pre><font
size=2 color=black face="Courier New"><span style='font-size:10.0pt;color:black'>Might have not made it clear I can route on the linux box perfectly its on a</span></font><o:p></o:p></pre><pre><font
size=2 color=black face="Courier New"><span style='font-size:10.0pt;color:black'>remote machine that where the default gateway is set to route that segment</span></font><o:p></o:p></pre><pre><font
size=2 color=black face="Courier New"><span style='font-size:10.0pt;color:black'>that it doesn't route via the linux box.</span></font><o:p></o:p></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'><o:p> </o:p></span></font></pre><pre><font
size=2 color=black face="Courier New"><span style='font-size:10.0pt;color:black'>-----Original Message-----</span></font><o:p></o:p></pre><pre><font
size=2 color=black face="Courier New"><span style='font-size:10.0pt;color:black'>From: Chris Bond [mailto:<a
href="mailto:chris@logics.co.uk">chris@logics.co.uk</a>] </span></font><o:p></o:p></pre><pre><font
size=2 color=black face="Courier New"><span style='font-size:10.0pt;color:black'>Sent: 28 October 2004 8:41 PM</span></font><o:p></o:p></pre><pre><font
size=2 color=black face="Courier New"><span style='font-size:10.0pt;color:black'>To: <a
href="mailto:mherbert@redhat.com">mherbert@redhat.com</a>; <a
href="mailto:herefordshire@mailman.lug.org.uk">herefordshire@mailman.lug.org.uk</a></span></font><o:p></o:p></pre><pre><font
size=2 color=black face="Courier New"><span style='font-size:10.0pt;color:black'>Subject: RE: [Herefordshire] Routing two subnets</span></font><o:p></o:p></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'><o:p> </o:p></span></font></pre><pre><font
size=2 color=black face="Courier New"><span style='font-size:10.0pt;color:black'>Already done that but still doesn't route the packets! Iptables -L shows</span></font><o:p></o:p></pre><pre><font
size=2 color=black face="Courier New"><span style='font-size:10.0pt;color:black'>default ACCEPT so its not that blocking it... aby more ideas?</span></font><o:p></o:p></pre>
<p class=MsoNormal style='margin-bottom:12.0pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'><br>
I assume your network is laid out like somewhat like:<br>
<br>
[Box A]<---Subnet 1-->[eth? "Linux Box" eth?]<--Subnet
2-->[Box B]<br>
<br>
Starting with basics I'll assume your attempting to ping Box B from Box
A. The output from this would be useful, even more useful would be the
packet capture whilst your pinging Box B (using tcpdump or ethereal). But
to start with if give us the output from the 'route' command on all the boxes
(plus a corresponding 'ifconfig' [Linux] or 'ipconfig /all' [Windows]) and we
can work from there.<br>
<br>
Thanks<br>
Mark<br>
<br>
<o:p></o:p></span></font></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'>-- <br>
Mark Broadbent <<a href="mailto:markb@wetlettuce.com">markb@wetlettuce.com</a>>
<o:p></o:p></span></font></p>
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