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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Sorry, on clarification is that I test the system from the client by issuing the command:<o:p></o:p></span></font></p><p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></font></p><p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>wget 127.0.0.1:3300<o:p></o:p></span></font></p><p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></font></p><p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Instead of using the port number with wget that I mentioned below.<o:p></o:p></span></font></p><p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></font></p><p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Thanks, John<o:p></o:p></span></font></p><p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></font></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif";font-weight:bold'>From:</span></font></b><font size=2 face=Tahoma><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> John Nix [mailto:jnix@vobal.com] <br><b><span style='font-weight:bold'>Sent:</span></b> Saturday, April 12, 2014 1:43 PM<br><b><span style='font-weight:bold'>To:</span></b> 'Juli Mallett'<br><b><span style='font-weight:bold'>Cc:</span></b> 'wanproxy@lists.wanproxy.org'<br><b><span style='font-weight:bold'>Subject:</span></b> RE: How to set peer0 to eth0 and not loopback?<o:p></o:p></span></font></p></div></div><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=2 color="#1f497d" face=Calibri><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Hi Juli,<o:p></o:p></span></font></p><p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></font></p><p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Thanks for the quick feedback. My setup/goal is relatively simple, so I didn’t expect this issue. Attached is the client configuration, and the server configuration (with slightly redacted/changed IP addresses/port numbers).<o:p></o:p></span></font></p><p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></font></p><p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>So, when I have both the client and server running, and then test the system by issuing the command on the client: wget 127.0.0.1:55123<o:p></o:p></span></font></p><p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></font></p><p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>I can see wanproxy on the server is sending out the loopback interface (not eth0) to reach the server peer, which is my problem. <o:p></o:p></span></font></p><p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></font></p><p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Below is an example from tcpdump on the loopback interface of the server (again IP addresses slightly redacted), when I issue the wget command from the client above. So, this shows the traffic from wanproxy on the server is going back out the loopback interface, but I need eth0. The only difference from the standard installation was that since I am on Ubuntu 12.04 I had to compile with “poll” and not “epoll” on the server, but I doubt that is related.<o:p></o:p></span></font></p><p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></font></p><p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>I could give you access to the server if that would help.<o:p></o:p></span></font></p><p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></font></p><p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Thanks, John<o:p></o:p></span></font></p><p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></font></p><p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><a href="mailto:root@shuttle-XS35:/usr/src/wanproxy-0.8.0/programs/wanproxy#">root@shuttle-XS35:/usr/src/wanproxy-0.8.0/programs/wanproxy#</a> tcpdump -i lo -U -n<o:p></o:p></span></font></p><p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></font></p><p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>tcpdump: verbose output suppressed, use -v or -vv for full protocol decode<o:p></o:p></span></font></p><p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>listening on lo, link-type EN10MB (Ethernet), capture size 65535 bytes<o:p></o:p></span></font></p><p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></font></p><p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>13:29:25.237409 IP 107.206.YY.XX.53699 > 107.206.YY.ZZ.55123: Flags [S], seq 212899101, win 43690, options [mss 65495,sackOK,TS val 19955781 ecr 0,nop,wscale 7], length 0<o:p></o:p></span></font></p><p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>1397327365.237644 [/wanproxy/proxy/proxy0/connector] INFO: Connect failed: <Error>/0 [Success]<o:p></o:p></span></font></p><p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>13:29:25.237449 IP 107.206.YY.ZZ.55123 > 107.206.YY.XX.53699: Flags [R.], seq 0, ack 212899102, win 0, length 0<o:p></o:p></span></font></p><p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></font></p><p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></font></p><p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></font></p><p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></font></p><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif";font-weight:bold'>From:</span></font></b><font size=2 face=Tahoma><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> Juli Mallett [<a href="mailto:juli@clockworksquid.com">mailto:juli@clockworksquid.com</a>] <br><b><span style='font-weight:bold'>Sent:</span></b> Saturday, April 12, 2014 12:42 PM<br><b><span style='font-weight:bold'>To:</span></b> John Nix<br><b><span style='font-weight:bold'>Cc:</span></b> <a href="mailto:wanproxy@lists.wanproxy.org">wanproxy@lists.wanproxy.org</a><br><b><span style='font-weight:bold'>Subject:</span></b> Re: How to set peer0 to eth0 and not loopback?<o:p></o:p></span></font></p></div><p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:12.0pt'><o:p> </o:p></span></font></p><div><p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:12.0pt'>You absolutely should not need to go over loopback to connect to a remote peer. Can I ask how you're encountering that behaviour? Can you include your full configuration (redacting IPs if you feel it's necessary) and how you're verifying that it's not going out over the external interface? I ask on the last point because it's certainly the case that in some cases you may see traffic when doing tcpdump on a loopback interface if that traffic originates locally.<o:p></o:p></span></font></p><div><p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:12.0pt'><o:p> </o:p></span></font></p></div><div><p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:12.0pt'>Really, every useful configuration not involving an exterior tunnelling system should include at least one non-local peer, so I'm a little confused as to what your configuration must be that you're only seeing local traffic, or have gotten the impression that WANProxy cannot make connections across a network interface. If you've only looked at a configuration which uses SSH as a tunnel mechanism, such as the first configuration on <a href="http://wanproxy.org/examples.shtml">http://wanproxy.org/examples.shtml</a>, I'd encourage you to look at the second configuration, which connects directly over a WAN, or at the SSH optimization examples on <a href="http://wanproxy.org/ssh.shtml">http://wanproxy.org/ssh.shtml</a>, for inspiration.<o:p></o:p></span></font></p></div><div><p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:12.0pt'><o:p> </o:p></span></font></p></div><div><p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:12.0pt'>It should be enough to simply modify the peer0 definition to use a non-local IP to which you have a route. If something else is going wrong, I'd guess it's some kind of portability bug that I'd like to fix urgently, so would appreciate any more information you can give.<o:p></o:p></span></font></p></div><div><p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:12.0pt'><o:p> </o:p></span></font></p></div><div><p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:12.0pt'>Thanks very much for the report!<o:p></o:p></span></font></p></div><div><p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:12.0pt'>Juli.<o:p></o:p></span></font></p></div></div><div><p class=MsoNormal style='margin-bottom:12.0pt'><font size=3 face="Times New Roman"><span style='font-size:12.0pt'><o:p> </o:p></span></font></p><div><p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:12.0pt'>On Sat, Apr 12, 2014 at 10:31 AM, John Nix <<a href="mailto:jnix@vobal.com" target="_blank">jnix@vobal.com</a>> wrote:<o:p></o:p></span></font></p><div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font size=2 face=Calibri><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'>Hi,</span></font><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font size=2 face=Calibri><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'> </span></font><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font size=2 face=Calibri><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'>The wanproxy software looks like a good fit for our equipment connected over satellite links.</span></font><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font size=2 face=Calibri><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'> </span></font><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font size=2 face=Calibri><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'>Setting it up was straightforward, but I do have a basic question that doesn’t seem to be addressed in the documentation or through several searches on Google.</span></font><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font size=2 face=Calibri><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'> </span></font><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font size=2 face=Calibri><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'>For various reasons, I need peer0 to be on eth0 and not the loopback interface. For example, when use the command ‘set peer0.host “x.y.z.q” ‘, and look at tcpdump wanproxy is sending to x.y.z.q on the loopback interface, which won’t readily work for our particular application. </span></font><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font size=2 face=Calibri><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'> </span></font><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font size=2 face=Calibri><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'>I expect there are workarounds (like trying to use iptables to redirect from lo to eth0, or running redir to listen on loopback, etc.), but the simplest would be to have the wanproxy peer on eth0. In case it matters, I’m using Ubuntu 12.04.</span></font><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font size=2 face=Calibri><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'> </span></font><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font size=2 face=Calibri><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'>Thanks, John</span></font><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font size=2 face=Calibri><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'> </span></font><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font size=2 color=blue face=Arial><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:blue'>-------------------<br>John Nix<br>Founder and CEO<br>Vobal Technologies<br></span></font><font size=2 color=green face=Arial><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:green'><a href="tel:%2B1-847-350-9998" target="_blank">+1-847-350-9998</a> (o)<br><a href="tel:%2B1-847-452-3754" target="_blank">+1-847-452-3754</a> (m)<br></span></font><font size=2 color=blue face=Arial><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:blue'><a href="http://www.vobal.com/" target="_blank">www.vobal.com</a></span></font><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font size=2 face=Calibri><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'> </span></font><o:p></o:p></p></div></div><p class=MsoNormal style='margin-bottom:12.0pt'><font size=3 face="Times New Roman"><span style='font-size:12.0pt'><br>_______________________________________________<br>wanproxy mailing list<br><a href="mailto:wanproxy@lists.wanproxy.org">wanproxy@lists.wanproxy.org</a><br><a href="http://lists.wanproxy.org/listinfo.cgi/wanproxy-wanproxy.org" target="_blank">http://lists.wanproxy.org/listinfo.cgi/wanproxy-wanproxy.org</a><o:p></o:p></span></font></p></div><p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:12.0pt'><o:p> </o:p></span></font></p></div></div></body></html>