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<p class="MsoNormal"><span style="font-family:"HP Simplified Light","sans-serif";color:#15537D">Uli,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"HP Simplified Light","sans-serif";color:#15537D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"HP Simplified Light","sans-serif";color:#15537D">Thank you for the response.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"HP Simplified Light","sans-serif";color:#15537D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"HP Simplified Light","sans-serif";color:#15537D">I think this certainly would work to achieve what I need but I don’t think it would Scale well….<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"HP Simplified Light","sans-serif";color:#15537D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"HP Simplified Light","sans-serif";color:#15537D">If we say had 3 backend subnets, there are 7 IP address pools that potentially need firewalling… I am looking at the potential of having 10+ backends.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"HP Simplified Light","sans-serif";color:#15537D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"HP Simplified Light","sans-serif";color:#15537D">I wonder if there are any more scalable options?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"HP Simplified Light","sans-serif";color:#15537D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"HP Simplified Light","sans-serif";color:#15537D">Regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"HP Simplified Light","sans-serif";color:#15537D"><o:p> </o:p></span></p>
<div>
<p class="MsoNormal"><b><span style="font-size:9.0pt;font-family:"HP Simplified","sans-serif"">Andy Paton<br>
</span></b><span style="font-size:9.0pt;font-family:"HP Simplified","sans-serif";color:#717172">Business Development Solution Architect<br>
HP Enterprise Services</span><span style="color:#0F243E"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"HP Simplified Light","sans-serif";color:#15537D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext"> Ulrich Schinz [mailto:ulrich.schinz@ksfh.de]
<br>
<b>Sent:</b> 05 June 2013 10:20<br>
<b>To:</b> Paton, Andy; users@lists.strongswan.org<br>
<b>Subject:</b> Re: [strongSwan] Certificate Based Routing<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Hey Andy,<br>
<br>
maybe this helps a bit. I tried something similar, I tried to establish a "group"-system based on my certificates. So here my server-config:<br>
<br>
conn group1<br>
left=192.168.0.200<br>
leftcert=vpnserver.crt<br>
leftsubnet=192.168.5.0/24<br>
leftid=vpnserver.of.our.company.fqdn<br>
leftfirewall=yes<br>
right=%any<br>
rightid="DC=de, DC=company, O=Companyname, OU=group1 certificate, CN=*"<br>
rightsourceip=10.0.50.0/24<br>
auto=add<br>
<br>
conn group2<br>
left=192.168.0.200<br>
leftcert=vpnserver.crt<br>
leftsubnet=192.168.5.0/24,192.168.3.0/24<br>
leftid=vpnserver.of.our.company.fqdn<br>
leftfirewall=yes<br>
right=%any<br>
rightid="DC=de, DC=company, O=Companyname, OU=group2 certificate, CN=*"<br>
rightsourceip=10.0.0.0/24<br>
auto=add<br>
<br>
So now generating different certificates with right ids should bring you in the correct subnet.<br>
Further, by chosing a rightsourceip you can configure your firewall to accept connections to some hosts depending on
<br>
senders address. In config I have different rightsourceips defined...<br>
<br>
Your firewallsettings can be edited or configured. The defaut script for that is tha updown-script of strongswan. On debian<br>
wheezy I could find it in /usr/libexec/ipsec/_updown<br>
<br>
Hope this helps. <br>
Kind regards<br>
Uli<br>
<br>
<br>
Am 05.06.2013 10:36, schrieb Paton, Andy: <o:p></o:p></p>
<p class="MsoNormal" style="margin-bottom:12.0pt;line-height:13.5pt;background:white;vertical-align:baseline">
<span style="font-size:10.5pt;font-family:"Arial","sans-serif"">I am trying to design a unified VPN gateway - by unified i mean one VPN headend, which can handle connections to multiple backends. I have a VM with a number of NiC's attached:</span><o:p></o:p></p>
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<span style="font-size:10.5pt;font-family:"Arial","sans-serif"">eth0 - Front Facing IP of Headend 10.1.0.2/30 eth1 - Backend Resource grouup A 172.18.81.137/24 eth2 - Backend Resource group B 162.18.81.137/24</span><o:p></o:p></p>
<p class="MsoNormal" style="margin-bottom:12.0pt;line-height:13.5pt;background:white;vertical-align:baseline">
<span style="font-size:10.5pt;font-family:"Arial","sans-serif"">So the intention is to configure the VPN connection to inspect a device/user certificate (x509) and route to the backend resource according to an ACL.</span><o:p></o:p></p>
<p class="MsoNormal" style="margin-bottom:12.0pt;line-height:13.5pt;background:white;vertical-align:baseline">
<span style="font-size:10.5pt;font-family:"Arial","sans-serif"">So for example -</span><o:p></o:p></p>
<p class="MsoNormal" style="margin-bottom:12.0pt;line-height:13.5pt;background:white;vertical-align:baseline">
<span style="font-size:10.5pt;font-family:"Arial","sans-serif"">Joe Bloggs is permitted to access resources on both backend A & B. Mickey Mouse is permitted to access only resources on backend B.</span><o:p></o:p></p>
<p class="MsoNormal" style="margin-bottom:12.0pt;line-height:13.5pt;background:white;vertical-align:baseline">
<span style="font-size:10.5pt;font-family:"Arial","sans-serif"">Joe Bloggs establishes VPN connection to the headend, and attempts to connect to a resource: 172.17.81.142 for example, on resource group A. Based on the Joe's certificate he should be routed accordingly
for this request.</span><o:p></o:p></p>
<p class="MsoNormal" style="margin-bottom:12.0pt;line-height:13.5pt;background:white;vertical-align:baseline">
<span style="font-size:10.5pt;font-family:"Arial","sans-serif"">If Mickey mouse attempts to access the same resource, because the certificate doesn't permit access - then Strongswan should block access to this IP address.</span><o:p></o:p></p>
<p class="MsoNormal" style="margin-bottom:12.0pt;line-height:13.5pt;background:white;vertical-align:baseline">
<span style="font-size:10.5pt;font-family:"Arial","sans-serif"">How might i go about configuring strongswan to do this?</span><o:p></o:p></p>
<p class="MsoNormal" style="margin-bottom:12.0pt;line-height:13.5pt;background:white;vertical-align:baseline">
<span style="font-size:10.5pt;font-family:"Arial","sans-serif"">Current config looks like this - for dropping resources onto a single subnet:</span><o:p></o:p></p>
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<span style="font-size:10.5pt;font-family:Consolas;border:none windowtext 1.0pt;padding:0cm;background:#EEEEEE"># /etc/ipsec.conf - strongSwan IPsec configuration file</span><o:p></o:p></p>
<p class="MsoNormal" style="line-height:13.5pt;background:#EEEEEE;vertical-align:baseline">
<span style="font-size:10.5pt;font-family:Consolas;border:none windowtext 1.0pt;padding:0cm;background:#EEEEEE"> </span><o:p></o:p></p>
<p class="MsoNormal" style="line-height:13.5pt;background:#EEEEEE;vertical-align:baseline">
<span style="font-size:10.5pt;font-family:Consolas;border:none windowtext 1.0pt;padding:0cm;background:#EEEEEE">config setup</span><o:p></o:p></p>
<p class="MsoNormal" style="line-height:13.5pt;background:#EEEEEE;vertical-align:baseline">
<span style="font-size:10.5pt;font-family:Consolas;border:none windowtext 1.0pt;padding:0cm;background:#EEEEEE"> crlcheckinterval=180</span><o:p></o:p></p>
<p class="MsoNormal" style="line-height:13.5pt;background:#EEEEEE;vertical-align:baseline">
<span style="font-size:10.5pt;font-family:Consolas;border:none windowtext 1.0pt;padding:0cm;background:#EEEEEE"> strictcrlpolicy=no</span><o:p></o:p></p>
<p class="MsoNormal" style="line-height:13.5pt;background:#EEEEEE;vertical-align:baseline">
<span style="font-size:10.5pt;font-family:Consolas;border:none windowtext 1.0pt;padding:0cm;background:#EEEEEE"> plutostart=no</span><o:p></o:p></p>
<p class="MsoNormal" style="line-height:13.5pt;background:#EEEEEE;vertical-align:baseline">
<span style="font-size:10.5pt;font-family:Consolas;border:none windowtext 1.0pt;padding:0cm;background:#EEEEEE"> </span><o:p></o:p></p>
<p class="MsoNormal" style="line-height:13.5pt;background:#EEEEEE;vertical-align:baseline">
<span style="font-size:10.5pt;font-family:Consolas;border:none windowtext 1.0pt;padding:0cm;background:#EEEEEE">conn %default</span><o:p></o:p></p>
<p class="MsoNormal" style="line-height:13.5pt;background:#EEEEEE;vertical-align:baseline">
<span style="font-size:10.5pt;font-family:Consolas;border:none windowtext 1.0pt;padding:0cm;background:#EEEEEE"> ikelifetime=60m</span><o:p></o:p></p>
<p class="MsoNormal" style="line-height:13.5pt;background:#EEEEEE;vertical-align:baseline">
<span style="font-size:10.5pt;font-family:Consolas;border:none windowtext 1.0pt;padding:0cm;background:#EEEEEE"> keylife=20m</span><o:p></o:p></p>
<p class="MsoNormal" style="line-height:13.5pt;background:#EEEEEE;vertical-align:baseline">
<span style="font-size:10.5pt;font-family:Consolas;border:none windowtext 1.0pt;padding:0cm;background:#EEEEEE"> rekeymargin=3m</span><o:p></o:p></p>
<p class="MsoNormal" style="line-height:13.5pt;background:#EEEEEE;vertical-align:baseline">
<span style="font-size:10.5pt;font-family:Consolas;border:none windowtext 1.0pt;padding:0cm;background:#EEEEEE"> keyingtries=1</span><o:p></o:p></p>
<p class="MsoNormal" style="line-height:13.5pt;background:#EEEEEE;vertical-align:baseline">
<span style="font-size:10.5pt;font-family:Consolas;border:none windowtext 1.0pt;padding:0cm;background:#EEEEEE"> ike=aes256-sha256-modp1024!</span><o:p></o:p></p>
<p class="MsoNormal" style="line-height:13.5pt;background:#EEEEEE;vertical-align:baseline">
<span style="font-size:10.5pt;font-family:Consolas;border:none windowtext 1.0pt;padding:0cm;background:#EEEEEE"> esp=aes256-sha256-modp1024!</span><o:p></o:p></p>
<p class="MsoNormal" style="line-height:13.5pt;background:#EEEEEE;vertical-align:baseline">
<span style="font-size:10.5pt;font-family:Consolas;border:none windowtext 1.0pt;padding:0cm;background:#EEEEEE"> </span><o:p></o:p></p>
<p class="MsoNormal" style="line-height:13.5pt;background:#EEEEEE;vertical-align:baseline">
<span style="font-size:10.5pt;font-family:Consolas;border:none windowtext 1.0pt;padding:0cm;background:#EEEEEE">conn rw</span><o:p></o:p></p>
<p class="MsoNormal" style="line-height:13.5pt;background:#EEEEEE;vertical-align:baseline">
<span style="font-size:10.5pt;font-family:Consolas;border:none windowtext 1.0pt;padding:0cm;background:#EEEEEE"> #left=10.1.0.2</span><o:p></o:p></p>
<p class="MsoNormal" style="line-height:13.5pt;background:#EEEEEE;vertical-align:baseline">
<span style="font-size:10.5pt;font-family:Consolas;border:none windowtext 1.0pt;padding:0cm;background:#EEEEEE"> leftcert=supermanCert.der</span><o:p></o:p></p>
<p class="MsoNormal" style="line-height:13.5pt;background:#EEEEEE;vertical-align:baseline">
<span style="font-size:10.5pt;font-family:Consolas;border:none windowtext 1.0pt;padding:0cm;background:#EEEEEE"> leftid="CN=EN, O=JusticeLeague, CN=Metropolis"</span><o:p></o:p></p>
<p class="MsoNormal" style="line-height:13.5pt;background:#EEEEEE;vertical-align:baseline">
<span style="font-size:10.5pt;font-family:Consolas;border:none windowtext 1.0pt;padding:0cm;background:#EEEEEE"> leftsubnet=172.17.81.137/27</span><o:p></o:p></p>
<p class="MsoNormal" style="line-height:13.5pt;background:#EEEEEE;vertical-align:baseline">
<span style="font-size:10.5pt;font-family:Consolas;border:none windowtext 1.0pt;padding:0cm;background:#EEEEEE"> leftfirewall=yes</span><o:p></o:p></p>
<p class="MsoNormal" style="line-height:13.5pt;background:#EEEEEE;vertical-align:baseline">
<span style="font-size:10.5pt;font-family:Consolas;border:none windowtext 1.0pt;padding:0cm;background:#EEEEEE"> right=%any</span><o:p></o:p></p>
<p class="MsoNormal" style="line-height:13.5pt;background:#EEEEEE;vertical-align:baseline">
<span style="font-size:10.5pt;font-family:Consolas;border:none windowtext 1.0pt;padding:0cm;background:#EEEEEE"> rightsourceip=10.3.100.0/24</span><o:p></o:p></p>
<p class="MsoNormal" style="line-height:13.5pt;background:#EEEEEE;vertical-align:baseline">
<span style="font-size:10.5pt;font-family:Consolas;border:none windowtext 1.0pt;padding:0cm;background:#EEEEEE"> rightid=%any</span><o:p></o:p></p>
<p class="MsoNormal" style="line-height:13.5pt;background:#EEEEEE;vertical-align:baseline">
<span style="font-size:10.5pt;font-family:Consolas;border:none windowtext 1.0pt;padding:0cm;background:#EEEEEE"> keyexchange=ikev2</span><o:p></o:p></p>
<p class="MsoNormal" style="line-height:13.5pt;background:#EEEEEE;vertical-align:baseline">
<span style="font-size:10.5pt;font-family:Consolas;border:none windowtext 1.0pt;padding:0cm;background:#EEEEEE"> auto=add</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:10.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:10.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal"><b><span style="font-size:9.0pt">Andy Paton<br>
</span></b><span style="font-size:9.0pt">Business Development Solution Architect<br>
HP Enterprise Services</span><o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman","serif""><br>
<br>
<br>
<o:p></o:p></span></p>
<pre>_______________________________________________<o:p></o:p></pre>
<pre>Users mailing list<o:p></o:p></pre>
<pre><a href="mailto:Users@lists.strongswan.org">Users@lists.strongswan.org</a><o:p></o:p></pre>
<pre><a href="https://lists.strongswan.org/mailman/listinfo/users">https://lists.strongswan.org/mailman/listinfo/users</a><o:p></o:p></pre>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman","serif""><br>
<br>
<br>
<o:p></o:p></span></p>
<pre>-- <o:p></o:p></pre>
<pre>Ulrich Schinz<o:p></o:p></pre>
<pre> <o:p></o:p></pre>
<pre><o:p> </o:p></pre>
<pre><a href="mailto:ulrich.schinz@ksfh.de">ulrich.schinz@ksfh.de</a><o:p></o:p></pre>
<pre><o:p> </o:p></pre>
<pre>___________________________________________<o:p></o:p></pre>
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<pre>Don Bosco Str. 1<o:p></o:p></pre>
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