<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML ><HEAD ><TITLE >FAQ</TITLE ><META NAME="GENERATOR" CONTENT="Modular DocBook HTML Stylesheet Version 1.7"><LINK REL="HOME" TITLE="Linux Optimized Link State Routing Protocol (OLSR) IPv6 HOWTO" HREF="index.html"><LINK REL="PREVIOUS" TITLE="OLSR for Linux" HREF="olsrlinux.html"><LINK REL="NEXT" TITLE="Useful Resources" HREF="resources.html"></HEAD ><BODY CLASS="sect1" BGCOLOR="#FFFFFF" TEXT="#000000" LINK="#0000FF" VLINK="#840084" ALINK="#0000FF" ><DIV CLASS="NAVHEADER" ><TABLE SUMMARY="Header navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TH COLSPAN="3" ALIGN="center" >Linux Optimized Link State Routing Protocol (OLSR) IPv6 HOWTO</TH ></TR ><TR ><TD WIDTH="10%" ALIGN="left" VALIGN="bottom" ><A HREF="olsrlinux.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="80%" ALIGN="center" VALIGN="bottom" ></TD ><TD WIDTH="10%" ALIGN="right" VALIGN="bottom" ><A HREF="resources.html" ACCESSKEY="N" >Next</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><DIV CLASS="sect1" ><H1 CLASS="sect1" ><A NAME="faq" ></A >4. FAQ</H1 ><P >Some of these question/answers are from the <A HREF="http://www.olsr.org" TARGET="_top" >OLSRd</A > site.</P ><DIV CLASS="qandaset" ><DL ><DT >4.1. <A HREF="faq.html#AEN387" >If OLSRd fully RFC3626 compliant?</A ></DT ><DT >4.2. <A HREF="faq.html#AEN393" >Can I mix site-local and global IPv6 addresses?</A ></DT ><DT >4.3. <A HREF="faq.html#AEN399" >The GUI front-end failed to compile...why?</A ></DT ><DT >4.4. <A HREF="faq.html#AEN404" >If there is multiply gateways present, how does the mobile node conclude to use the nearest one?</A ></DT ><DT >4.5. <A HREF="faq.html#AEN410" >I get OLSRd up and running - but the nodes don't seem to <SPAN CLASS="QUOTE" >"hear"</SPAN > each other!</A ></DT ></DL ><DIV CLASS="qandaentry" ><DIV CLASS="question" ><P ><A NAME="AEN387" ></A ><B >4.1. </B >If OLSRd fully RFC3626 compliant?</P ></DIV ><DIV CLASS="answer" ><P ><B > </B >Yes. It even has implemented some of the extra functionality mentioned in the RFC. See the <A HREF="http://www.olsr.org/index.cgi?action=comp" TARGET="_top" > RFC Compliance</A > section for complete list. </P ></DIV ></DIV ><DIV CLASS="qandaentry" ><DIV CLASS="question" ><P ><A NAME="AEN393" ></A ><B >4.2. </B >Can I mix site-local and global IPv6 addresses?</P ></DIV ><DIV CLASS="answer" ><P ><B > </B >Yes. But keep in mind that they intentionally were not designed to be used at the same time. The network topology can be quite <SPAN CLASS="QUOTE" >"messy"</SPAN > if you start using these two. </P ></DIV ></DIV ><DIV CLASS="qandaentry" ><DIV CLASS="question" ><P ><A NAME="AEN399" ></A ><B >4.3. </B >The GUI front-end failed to compile...why?</P ></DIV ><DIV CLASS="answer" ><P ><B > </B >You probably don't have the GTK2.0 development libraries installed.</P ></DIV ></DIV ><DIV CLASS="qandaentry" ><DIV CLASS="question" ><P ><A NAME="AEN404" ></A ><B >4.4. </B >If there is multiply gateways present, how does the mobile node conclude to use the nearest one?</P ></DIV ><DIV CLASS="answer" ><P ><B > </B >When a new gateway is detected, the Mobile Node checks the distance (number of hops) to this newly discovered gateway compared to the current gateway. If there is a shorter distance, this new gateway becomes the current (default) gateway. See section 12.6.2 in the OLSR RFC (<A HREF="http://www.ietf.org/rfc/rfc3626.txt" TARGET="_top" >RFC3626</A >)</P ></DIV ></DIV ><DIV CLASS="qandaentry" ><DIV CLASS="question" ><P ><A NAME="AEN410" ></A ><B >4.5. </B >I get OLSRd up and running - but the nodes don't seem to <SPAN CLASS="QUOTE" >"hear"</SPAN > each other!</P ></DIV ><DIV CLASS="answer" ><P ><B > </B >Most of the time this is a configuration error: Check the following:</P ><P ></P ><UL ><LI ><P > If using WLAN interfaces make sure the ESSID/key match. </P ></LI ><LI ><P > Make sure the cards are set in <SPAN CLASS="QUOTE" >"ad-hoc"</SPAN > mode and not <SPAN CLASS="QUOTE" >"managed"</SPAN >. </P ></LI ><LI ><P > Make sure you are not blocking UDP/698. If using netfilter run <TT CLASS="userinput" ><B >ip6tables -L</B ></TT > as root to see what rules are set. <TT CLASS="userinput" ><B >ip6tables -F</B ></TT > flushes all rules. </P ></LI ></UL ></DIV ></DIV ></DIV ></DIV ><DIV CLASS="NAVFOOTER" ><HR ALIGN="LEFT" WIDTH="100%"><TABLE SUMMARY="Footer navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" ><A HREF="olsrlinux.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="index.html" ACCESSKEY="H" >Home</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" ><A HREF="resources.html" ACCESSKEY="N" >Next</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >OLSR for Linux</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" > </TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >Useful Resources</TD ></TR ></TABLE ></DIV ></BODY ></HTML >