[Olsr-users] Olsrd not pinging at second hop

Vigneswaran R (spam-protected)
Wed Nov 26 07:47:37 CET 2014


On 11/26/2014 12:03 PM, pramod Jayram wrote:
> 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

Oh.. ok. I haven't used openwrt. Let us hope for help from someone else.

vignesh

>
> On Wed, Nov 26, 2014 at 11:45 AM, Vigneswaran R <(spam-protected) 
> <mailto:(spam-protected)>> wrote:
>
>     On 11/26/2014 11:18 AM, pramod Jayram wrote:
>>     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
>>     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.
>
>     * Check the routing entries throughout the path from L1 to r2 (and
>     the reverse).
>     * use tcpdump on r1 and r2 to see where the ICMP packets are being
>     dropped
>
>     vignesh
>
>>
>>     thank you
>>
>>     On Wed, Nov 26, 2014 at 10:05 AM, Vigneswaran R
>>     <(spam-protected) <mailto:(spam-protected)>> wrote:
>>
>>         On 11/25/2014 06:42 PM, pramod Jayram wrote:
>>
>>             Hello everyone,
>>             I have configured 3 routers r1 r2 and laptop with olsrd
>>             on adhoc mode. The topology is as shown below.
>>                r1  <-->  r2  <-->  laptop
>>             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??
>>
>>
>>         Is this problem similar to the one you have posted and
>>         resolved earlier (pl. see the following URL)?
>>
>>         https://lists.olsr.org//pipermail/olsr-users/2014-October/006011.html
>>
>>         Did you try the same debugging steps suggested then by Henning?
>>
>>         Vignesh
>>
>>
>
>

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