[Olsr-users] Problem in my OLSR network

[Victor]

Hey, 

Theres something wrong with the routing table in laptop A...more
specifically 


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


How come it thinks the metric to 192.168.100.8 is 1, it should be 0! Also,
the gateway should not be * it should be 192.168.100.8 since u need to go
via 8 to get to C. So something is fishy there but I don't know any
configuration in the OLSR that would be causing this. 

Ok, I'm kinda grasping at straws here so the following probably wont work
but give it a try anywaz.

Try:
On all 3 laptops disable eth0 and any other interface except for the
wireless one, (ie ifdown eth0). I've had issues with other interfaces
confusing the routing table before though at the time I had really funny
netmasks and urs seem fine. 

If that all fails, well I don't know, but I guess you could do a really
basic test and manually add the routes into each laptop and see if it still
works then

Ie 
For Laptop A
ip route add 192.168.100.8 dev wlan0
ip route add 192.168.100.1 via 192.168.100.8

For Laptop B
ip route add 192.168.100.5 dev wlan0
ip route add 192.168.100.1 dev wlan0

For laptop C
ip route add 192.168.100.8 dev wlan0
ip route add 192.168.100.5 via 192.168.100.8

Uh, you should double check the above ip route commands... its being a while
since I've worked with then. And don't forget to delete the current ones. 


Try posting ur olsr.conf files and route results for all 3 laptops next time
if u still cant get it to work

Victor

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

Message: 2
Date: Fri, 2 May 2008 22:58:29 -0700 (PDT)
From: Agung Septiadi <(spam-protected)>
Subject: Re: [Olsr-users] Problem in my OLSR network (Agung Septiadi)
To: (spam-protected)
Message-ID: <(spam-protected)>
Content-Type: text/plain; charset="utf-8"

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?