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    <div class="moz-cite-prefix">On 11/26/2014 12:03 PM, pramod Jayram
      wrote:<br>
    </div>
    <blockquote
cite="mid:CAE9HMoyzdM5e0dQxO1NNs9gTMmoTQFijtUnvGzvr=DKOeKvaWw@mail.gmail.com"
      type="cite">
      <div dir="ltr">tcpdump command does not work on openwrt and r1 can
        ping r2 and r2 can ping r1 but r1 and r2 cant forward the data</div>
    </blockquote>
    <br>
    Oh.. ok. I haven't used openwrt. Let us hope for help from someone
    else.<br>
    <br>
    vignesh<br>
    <br>
    <blockquote
cite="mid:CAE9HMoyzdM5e0dQxO1NNs9gTMmoTQFijtUnvGzvr=DKOeKvaWw@mail.gmail.com"
      type="cite">
      <div class="gmail_extra"><br>
        <div class="gmail_quote">On Wed, Nov 26, 2014 at 11:45 AM,
          Vigneswaran R <span dir="ltr"><<a moz-do-not-send="true"
              href="mailto:vignesh@atc.tcs.com" target="_blank">vignesh@atc.tcs.com</a>></span>
          wrote:<br>
          <blockquote class="gmail_quote" style="margin:0 0 0
            .8ex;border-left:1px #ccc solid;padding-left:1ex">
            <div bgcolor="#FFFFFF" text="#000000"><span class="">
                <div>On 11/26/2014 11:18 AM, pramod Jayram wrote:<br>
                </div>
                <blockquote type="cite">
                  <div dir="ltr">Initially i had blocked two laptops
                    using command sudo iptables -A INPUT -m mac
                    --mac-source <mac-id> -j DROP and then tried
                    to ping l1 to l2 via router and it worked
                    <div>But as of now i have blovked laptop and
                      router(r2) and trying to ping L1 to r2 via r1 but
                      this is not happening even when i enabled
                      forwarding in firewall and used command echo 1
                      > /roc/sys/net/ipv4/ip_forward.<br>
                    </div>
                  </div>
                </blockquote>
                <br>
              </span> * Check the routing entries throughout the path
              from L1 to r2 (and the reverse).<br>
              * use tcpdump on r1 and r2 to see where the ICMP packets
              are being dropped<br>
              <br>
              vignesh<span class=""><br>
                <br>
                <blockquote type="cite">
                  <div dir="ltr">
                    <div><br>
                    </div>
                    <div>thank you </div>
                  </div>
                  <div class="gmail_extra"><br>
                    <div class="gmail_quote">On Wed, Nov 26, 2014 at
                      10:05 AM, Vigneswaran R <span dir="ltr"><<a
                          moz-do-not-send="true"
                          href="mailto:vignesh@atc.tcs.com"
                          target="_blank">vignesh@atc.tcs.com</a>></span>
                      wrote:<br>
                      <blockquote class="gmail_quote" style="margin:0 0
                        0 .8ex;border-left:1px #ccc
                        solid;padding-left:1ex">
                        <div>
                          <div>On 11/25/2014 06:42 PM, pramod Jayram
                            wrote:<br>
                            <blockquote class="gmail_quote"
                              style="margin:0 0 0 .8ex;border-left:1px
                              #ccc solid;padding-left:1ex"> Hello
                              everyone,<br>
                              I have configured 3 routers r1 r2 and
                              laptop with olsrd on adhoc mode. The
                              topology is as shown below.<br>
                                 r1  <-->  r2  <-->  laptop<br>
                              r1 can see r2 but not laptop and r2 can
                              see both. When i started olsrd r1 could
                              not ping laptop but it could ping r2 and
                              same with laptop. I even enabled
                              forwarding on r2 but still with the same
                              results. So Is there any way to solve
                              this??<br>
                            </blockquote>
                            <br>
                          </div>
                        </div>
                        Is this problem similar to the one you have
                        posted and resolved earlier (pl. see the
                        following URL)?<br>
                        <br>
                        <a moz-do-not-send="true"
href="https://lists.olsr.org//pipermail/olsr-users/2014-October/006011.html"
                          target="_blank">https://lists.olsr.org//pipermail/olsr-users/2014-October/006011.html</a><br>
                        <br>
                        Did you try the same debugging steps suggested
                        then by Henning?<br>
                        <br>
                        Vignesh<br>
                        <br>
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              </span></div>
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