<html><head><style type="text/css"><!-- DIV {margin:0px;} --></style></head><body><div style="font-family:arial, helvetica, sans-serif;font-size:14pt"><DIV>Hi Henning, Markus,</DIV>
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<DIV>I did the same experiment with 3 LINUX machines and realised that the 2 furthest LINUX machines are able to communicate via the middle LINUX machine.</DIV>
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<DIV>I begin to suspect it is the MacBook Pro OSX that was causing the problems that I had previously.</DIV>
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<DIV>May I know what version of OSX that the OLSRD 0.6.0 has been tested on?</DIV>
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<DIV>Thank you.</DIV>
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<DIV>Rdgs,</DIV>
<DIV>Paul</DIV>
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<B><SPAN style="FONT-WEIGHT: bold">From:</SPAN></B> RC Loh <rc_loh@yahoo.com.sg><BR><B><SPAN style="FONT-WEIGHT: bold">To:</SPAN></B> Henning Rogge <henning.rogge@fkie.fraunhofer.de><BR><B><SPAN style="FONT-WEIGHT: bold">Cc:</SPAN></B> olsr-users@lists.olsr.org<BR><B><SPAN style="FONT-WEIGHT: bold">Sent:</SPAN></B> Wednesday, 11 May 2011 11:51:48<BR><B><SPAN style="FONT-WEIGHT: bold">Subject:</SPAN></B> Re: [Olsr-users] Cannot communicate 2 hops away<BR></FONT><BR>
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<DIV>Hi Henning and all,</DIV>
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<DIV>Thank you very much for all your advise.</DIV>
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<DIV>Attached is the screen capture for "olsrd -v" and "tcpdump" taken from 10.10.10.15.</DIV>
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<DIV>I have also attached the routing tables of Mac12 and Mac13 when 10.10.10.13 cannot PING to 10.10.10.15 via 10.10.10.12.</DIV>
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<DIV>I have checked the following:</DIV>
<DIV>1) Set all the "firewall"s on all the 3 MacBook to OFF.</DIV>
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<DIV>2) The ip forwarding is ON for all the 3 MacBook by using the command "sysctl -a | grep forwarding" and it gave net.inet.ip.forwarding=1</DIV>
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<DIV>Hi Markus,</DIV>
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<DIV>From what I checked from the OLRDS web site, the version 0.6.0 is the latest stable version.</DIV>
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<DIV>Rdgs,</DIV>
<DIV>Paul</DIV>
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<B><SPAN style="FONT-WEIGHT: bold">From:</SPAN></B> Henning Rogge <henning.rogge@fkie.fraunhofer.de><BR><B><SPAN style="FONT-WEIGHT: bold">To:</SPAN></B> olsr-users@lists.olsr.org<BR><B><SPAN style="FONT-WEIGHT: bold">Cc:</SPAN></B> RC Loh <rc_loh@yahoo.com.sg><BR><B><SPAN style="FONT-WEIGHT: bold">Sent:</SPAN></B> Tuesday, 10 May 2011 13:57:07<BR><B><SPAN style="FONT-WEIGHT: bold">Subject:</SPAN></B> Re: [Olsr-users] Cannot communicate 2 hops away<BR></FONT><BR>On Tue May 10 2011 06:08:48 RC Loh wrote:<BR>> Hi,<BR>> <BR>> I have 3 MacBook Pro running OLSRD 0.6.0 with their IP addresses as shown<BR>> below: <BR>> <BR>> 10.10.10.13/24 10.10.10.12/24 10.10.10.15/24<BR>> (macbook13) (macbook12)
(macbook15)<BR>> <BR>> <BR>> When I placed all the 3 MacBooks close together, all of them can PING to<BR>> each other.<BR>> <BR>> When I placed macbook13 far away from macbook15 such that the routing table<BR>> of macbook13 did not have the DIRECT route to macbook15 but only had the<BR>> route to macbook12. The PING started to fail.<BR>> <BR>> Below are 2 questions:<BR>> <BR>> 1) When I did a PING from macbook13 to macbook15, I did not received a<BR>> response from macbook15. Why?<BR>> <BR>> 2) When I brought all the 3 MacBooks back to close together, they still<BR>> cannot PING to each other. Why?<BR>> <BR>> Anything that I configured wrongly?<BR>> <BR>> Any advise is appreciated.<BR>A few standard questions first... *G*<BR><BR>1.) what version of olsrd did you use ? (run "olsrd -v")<BR>2.) what was the routing table when mac 13 and mac 15 could
not hear each <BR>other ?<BR>3) did you receive OLSR packets on all three nodes (check with "tcpdump -i <BR><interface> -s 0 -vv port 698")<BR><BR>Henning Rogge<BR>-- <BR>Diplom-Informatiker Henning Rogge , Fraunhofer-Institut für<BR>Kommunikation, Informationsverarbeitung und Ergonomie FKIE<BR>Kommunikationssysteme (KOM)<BR>Neuenahrer Straße 20, 53343 Wachtberg, Germany<BR>Telefon +49 228 9435-961, Fax +49 228 9435 685<BR>mailto:<A href="mailto:henning.rogge@fkie.fraunhofer.de" rel=nofollow target=_blank ymailto="mailto:henning.rogge@fkie.fraunhofer.de">henning.rogge@fkie.fraunhofer.de</A> <A href="http://www.fkie.fraunhofer.de/" rel=nofollow target=_blank>http://www.fkie.fraunhofer.de</A><BR>GPG: E1C6 0914 490B 3909 D944 F80D 4487 C67C 55EC CFE0<BR></DIV></DIV></DIV></DIV></DIV></div></body></html>