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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='color:#1F497D'>Also back in 2006, the suggestion was made to put in leftsourceip=nn.nn.nn.nn in my conn definitions, where nn.nn.nn.nn is the IP Address of my LAN facing NIC. That way I could ping the other side of the a tunnel without always having to remember ping -I nn.nn.nn.nn {the.other.side}. <o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>But now when I put in leftcourceip=nn.nn.nn.nn it looks like Openswan assigns nn.nn.nn.nn to the Internet facing NIC, but with the wrong mask. Is this expected?<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>As I think about it, this makes sense and maybe helps clarify which IP Address to use when the Internet facing NIC has lot of addresses. It’s just different behavior then before.<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>Thanks<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo3'><![if !supportLists]><span style='color:#1F497D'><span style='mso-list:Ignore'>-<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span style='color:#1F497D'>Greg Scott<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> users-bounces@openswan.org [mailto:users-bounces@openswan.org] <b>On Behalf Of </b>Greg Scott<br><b>Sent:</b> Wednesday, March 09, 2011 11:48 AM<br><b>To:</b> users@openswan.org<br><b>Cc:</b> Steve Schmit; Dan Stadick<br><b>Subject:</b> [Openswan Users] leftsourceip behaving strangely (improperly?)<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I just noticed this. One of my ipsec systems hung a few days ago. Thinking I had a hardware problem, I started building up a replacement. Checking it out, I noticed my Internet tunnel facing NIC somehow took on the IP Address of the LAN facing NIC. This was strange. Digging deeper, I see what’s going on. <o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>The LAN side is 172.21.99.100/24 on device eth1. The Internet side (obfuscated) is 1.2.123.217/30 on device eth0.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>When I put leftsourceip=172.21.99.11 in my conn definition, after starting ipsec, I see this IP Address - but with a /16 – assigned to eth0, the Internet facing NIC. What’s up with that? When I comment out the leftsourceip line, the IP Addresses for all NICs look as expected. I can get rid of the leftsourceip and rightsourceip lines – I put them in to help troubleshoot problems when they come up because I don’t always have the ability to get at systems behind the tunnel. <o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>But this behavior is a new surprise – it never used to behave like this and I have several dozen systems set up this way. Why in the world did Openswan start assigning a private IP Address to the tunnel facing NIC? And can/should I do anything about it?<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>The new behavior happens with both 2.6.29 and 2.6.31 running on Fedora 14. <o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Here’s the relevant portion of the conn definition with the public IP addresses obfuscated. The leftsourceip is part of the leftsubnet – yet it ended up being assigned to the tunnel facing NIC with a /16 mask. Commenting out the leftsourceip line gets rid of the problem. <o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>conn DR<o:p></o:p></p><p class=MsoNormal> left=1.2.123.217<o:p></o:p></p><p class=MsoNormal> leftnexthop=1.2.123.218<o:p></o:p></p><p class=MsoNormal> leftsubnet=172.21.99.0/24<o:p></o:p></p><p class=MsoNormal> leftsourceip=172.21.99.100<o:p></o:p></p><p class=MsoNormal> leftid=@dr.local<o:p></o:p></p><p class=MsoNormal> # rsakey AQPLd3j2f<o:p></o:p></p><p class=MsoNormal> leftrsasigkey=0sAQPLd3j2…<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Thanks<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoListParagraph style='text-indent:-.25in;mso-list:l1 level1 lfo2'><![if !supportLists]><span style='mso-list:Ignore'>-<span style='font:7.0pt "Times New Roman"'> </span></span><![endif]>Greg Scott<o:p></o:p></p></div></body></html>