[OLSR-users] Re: OLSR Network Dying

[Benoit PAPILLAULT]

Andrew Hodel a écrit :
> Below is output from iwconfig, ifconfig, and contents of olsrd.conf. 
> All is the same on every node.
> 
> I changed every nodes netmask over to 255.0.0.0 although that should
> not be the problem because of host routes.  This still did not fix it.
> 
> The problem with wrt54g that I was having, and hence stopped using
> them, was bssid partitioning.  Now that I have an all prism network I
> no longer have that problem.
> 
> The most interesting thing is that olsr continues to run and all nodes
> have all nodes in the topology, you just can't do anything over the
> network.
> 
> 
> 
> Andrew
> 
> mnode1:~# iwconfig
> lo        no wireless extensions.
> 
> wifi0     IEEE 802.11b  ESSID:"test"
>           Mode:Ad-Hoc  Frequency:2.412GHz  Cell: 02:02:C8:2C:0A:CE
>           Bit Rate:2Mb/s   Sensitivity=1/3
>           Retry min limit:8   RTS thr=64 B   Fragment thr=256 B
>           Encryption key:off
>           Power Management:off
>           Link Quality:0/70  Signal level:-73 dBm  Noise level:-73 dBm
>           Rx invalid nwid:0  Rx invalid crypt:237  Rx invalid frag:0
>           Tx excessive retries:23903  Invalid misc:603122   Missed beacon:0
> 
> wlan0     IEEE 802.11b  ESSID:"test"
>           Mode:Ad-Hoc  Frequency:2.412GHz  Cell: 02:02:C8:2C:0A:CE
>           Bit Rate:2Mb/s   Sensitivity=1/3
>           Retry min limit:8   RTS thr=64 B   Fragment thr=256 B
>           Encryption key:off
>           Power Management:off
>           Link Quality:0/70  Signal level:-73 dBm  Noise level:-73 dBm
>           Rx invalid nwid:0  Rx invalid crypt:237  Rx invalid frag:0
>           Tx excessive retries:23903  Invalid misc:603122   Missed beacon:0
> 
> eth0      no wireless extensions.
> 
> mnode1:~# ifconfig
> eth0      Link encap:Ethernet  HWaddr 00:00:24:C3:FD:FC
>           inet addr:63.98.170.222  Bcast:63.255.255.255  Mask:255.255.255.0
>           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
>           RX packets:724556 errors:0 dropped:0 overruns:0 frame:0
>           TX packets:16640 errors:4 dropped:0 overruns:4 carrier:4
>           collisions:0 txqueuelen:1000
>           RX bytes:49976760 (47.6 MiB)  TX bytes:1992417 (1.9 MiB)
>           Interrupt:11 Base address:0xf000
> 
> lo        Link encap:Local Loopback
>           inet addr:127.0.0.1  Mask:255.0.0.0
>           UP LOOPBACK RUNNING  MTU:16436  Metric:1
>           RX packets:78 errors:0 dropped:0 overruns:0 frame:0
>           TX packets:78 errors:0 dropped:0 overruns:0 carrier:0
>           collisions:0 txqueuelen:0
>           RX bytes:11308 (11.0 KiB)  TX bytes:11308 (11.0 KiB)
> 
> wifi0     Link encap:UNSPEC  HWaddr
> 00-02-6F-36-9E-83-00-00-00-00-00-00-00-00-00-00
>           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
>           RX packets:987791 errors:0 dropped:0 overruns:0 frame:0
>           TX packets:109386 errors:0 dropped:0 overruns:0 carrier:0
>           collisions:0 txqueuelen:1000
>           RX bytes:194372235 (185.3 MiB)  TX bytes:29264115 (27.9 MiB)
>           Interrupt:10 Memory:c4827000-c4828000
> 
> wlan0     Link encap:Ethernet  HWaddr 00:02:6F:36:9E:83
>           inet addr:10.54.158.131  Bcast:10.255.255.255  Mask:255.0.0.0
>           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
>           RX packets:987791 errors:0 dropped:0 overruns:0 frame:0
>           TX packets:109386 errors:0 dropped:0 overruns:0 carrier:0
>           collisions:0 txqueuelen:0
>           RX bytes:176591997 (168.4 MiB)  TX bytes:29264115 (27.9 MiB)
>           Interrupt:10 Memory:c4827000-c4828000
> 
> mnode1:~# cat /etc/olsrd.conf
> DebugLevel      0
> IpVersion       4
> Hna4
> {
> 0.0.0.0 0.0.0.0
> }
> AllowNoInt      yes
> Willingness     6
> UseHysteresis   no
> LinkQualityLevel        2
> LoadPlugin "olsrd_nameservice.so.0.2"
> {
>         PlParam "name"  "mnode1"
>         PlParam "hosts-file"    "/var/run/hosts_olsr"
> }
> Pollrate        0.05
> Interface "wlan0"
> {
>     Ip4Broadcast                255.255.255.255
> }
> mnode1:~#

Here's mine:

ifconfig:

wlan0     Link encap:Ethernet  HWaddr 00:60:B3:8C:8D:A8
          inet addr:192.168.3.53  Bcast:255.255.255.255
Mask:255.255.255.255
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:355010 errors:0 dropped:0 overruns:0 frame:0
          TX packets:312451 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:46237031 (44.0 MiB)  TX bytes:47123224 (44.9 MiB)
          Interrupt:11 Base address:0x100

/etc/olsrd.conf:

Interface "wlan0"
{
   Ip4Broadcast                255.255.255.255
}

You can still do a "tcpdump -i any -n icmp" to investigate on both side
where you ping packets are lost. Good luck!

Benoit PAPILLAULT