[Olsr-users] Problem in my OLSR network (Agung Septiadi)

Sat May 3 07:58:29 CEST 2008

Hi Victor and everyone,

Oh, I use Laptops with Ubuntu 8.04 fresh installed on all laptops.
afaik, Ubuntu doesn't have firewall installed on default. cmiiw

Configuration on my laptops
Laptop A 192.168.100.5 with hostname agungsep-laptop
Laptop B 192.168.100.8 with hostname wilioke132
Laptop C 192.168.100.1 with hostname wmn
I put all laptops on that condition (A <--> B <--> C), 

B can ping both A and C, but A cannot ping C and vice versa!

If I use tracert to C on Laptop A, the output will show like this:
(spam-protected):/home/agungsep# tracert 192.168.100.1
traceroute to 192.168.100.1 (192.168.100.1), 30 hops max, 40 byte packets
 1  192.168.100.8 (192.168.100.8)  10.162 ms  22.822 ms *
 2  * * *
 3  * * *
 4  * * *
      |
   (I deleted line 5 until linet 27 on this email :) )
      |
28  * * *
29  * * *
30  * * *

And if I use 'route' command on Laptop A, the result is
(spam-protected):/home/agungsep# route
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
192.168.100.1   *               255.255.255.255 UH    1      0        0 wlan0
192.168.100.8   *               255.255.255.255 UH    1      0        0 wlan0
167.205.64.64   *               255.255.255.192 U     0      0        0 eth0
192.168.100.0   *               255.255.255.0   U     0      0        0 wlan0
link-local      *               255.255.0.0     U     1000   0        0 eth0
default         *               0.0.0.0         U     0      0        0 wlan0
default         167.205.64.65   0.0.0.0         UG    100    0        0 eth0

This is the OLSR table routing with 'olsrd -d 2' command on Laptop A
       *** olsr.org - 0.5.4 (2007-11-22 00:04:03 on vernadsky) ***

--- 11:13:34.64 ------------------------------------------------- DIJKSTRA

192.168.100.5 no next-hop

--- 11:13:34.64 ---------------------------------------------------- LINKS

IP address       hyst   LQ     lost   total  NLQ    ETX
192.168.100.8    0.000  0.343  6      11     0.969  3.01

--- 11:13:34.64 ------------------------------------------------ NEIGHBORS

IP address       LQ     NLQ    SYM   MPR   MPRS  will
192.168.100.8    0.343  0.969  YES   YES   YES   7

--- 11:13:34.02649341 ----------------------- TWO-HOP NEIGHBORS

IP addr (2-hop)  IP addr (1-hop)  TLQ
192.168.100.1    192.168.100.8    0.000

--- 11:13:34.64 ------------------------------------------------- TOPOLOGY

Source IP addr   Dest IP addr     LQ     ILQ    ETX
192.168.100.1    192.168.100.5    1.000  0.886  1.13
192.168.100.1    192.168.100.8    1.000  1.000  1.00
192.168.100.5    192.168.100.8    0.969  0.343  3.01
192.168.100.8    192.168.100.1    1.000  1.000  1.00
192.168.100.8    192.168.100.5    0.988  0.937  1.08

But I still cannot ping from A to C!
Does any configuration that I missed?

----- Original Message ----
From: Victor <(spam-protected)>
To: (spam-protected)
Sent: Friday, 2 May, 2008 7:26:56 PM
Subject: Re: [Olsr-users] Problem in my OLSR network (Agung Septiadi)

Hi, 

Let me get this straight, A cannot ping C and C cannot ping A? What about to
B etc? 

Either way, have you checked to see if the firewall (if you have any) is
blocking the pings? Try disabling the firewalls and checking.

Second thing to try would be a traceroute / tracert depending if your using
linux or windows respectively. 

If that doesn't work you could check you iptables and just be sure that
everything there makes sense though I cant see why not. If in windows try
route PRINT, and linux type route

Regards, 
Victor

----------------------------------------------------------------------

Message: 1
Date: Thu, 1 May 2008 21:19:38 -0700 (PDT)
From: Agung Septiadi <(spam-protected)>
Subject: [Olsr-users] Problem in my OLSR network
To: (spam-protected)
Message-ID: <(spam-protected)>
Content-Type: text/plain; charset="utf-8"

Hi everyone, I use OLSR for my experiment.

I use three laptops (laptop A, B, C) which is configured as full mesh. 
I set all of three laptops 'iwconfig ath0 essid "telecom_mesh" mode ad-hoc
channel 2' so all laptops have a same essid
Every laptops is set with debug level 2 (olsrd -d 2) so I can see table
routing and every laptop can ping each other. 

Then I use laptop in condition like this.
  A  <--> B <--> C
I placed A and C in such a way that A cannot coverage C due to physical
distance. I haven't use iptables because physical distance can accomodate
this experiments.
In OLSR debug mode at laptop A, I can see that B is the 1st neighbor of A
and C is the 2 hop neighbor of A. But I cannot ping C from A

Does any other configuration that I missed? Why A cannot ping to C while in
OLSR table routing in A, C is 2 hop neighbour of A?

Thanks, regards

-- 
Olsr-users mailing list
(spam-protected)
http://lists.olsr.org/mailman/listinfo/olsr-users

      __________________________________________________________
Sent from Yahoo! Mail.
A Smarter Email http://uk.docs.yahoo.com/nowyoucan.html
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.olsr.org/pipermail/olsr-users/attachments/20080502/332fc86e/attachment.html>