[Olsr-users] OLSRv2: routing only for one hop neighbors

Martin Garbe (spam-protected)
Wed Apr 6 00:02:23 CEST 2016 

Hello all,

currently I try to connect three devices in a row via OLSRv2 and this
fails. I tried to choose a simple setup using IPv4. Node A is only
connected to node B. Node C is only connected to node B.
 A -- B -- C

My problem is that A has no routing information about C and vice versa.
Therefore A cannot connecto to C and C not to A.
Via link_twohop all nodes are visible. I checked link symmetry and valid
IP addresses.

At this point I do not know what to check next. Can anybody give a hint?

Attached you can find the following information of all three nodes:
- ifconfig
- echo /nhdpinfo link
- echo /nhdpinfo link_twohop
- echo /olsrv2info route
- OLSRv2 Config

Thanks in advance,
Martin
-------------- next part --------------
Node A - Linux Laptop, OLSRv2 Git commit: v0.10.0-96-ga9a7894
------

$ ifconfig
eth0      Link encap:Ethernet  HWaddr 3c:97:xx:xx:42:b3  
          inet addr:192.168.99.1  Bcast:192.168.99.1  Mask:255.255.255.255
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:258011 errors:0 dropped:4 overruns:0 frame:0
          TX packets:276767 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:67188651 (67.1 MB)  TX bytes:32012329 (32.0 MB)
          Interrupt:20 Memory:f2500000-f2520000 
...

$ echo /nhdpinfo link | nc localhost 2009
eth0	192.168.21.3	20	2	18	18	38	symmetric	-	c4:e9:84:7d:e4:48	192.168.21.3	-	0	ff_dat_metric	1020  bit/s	2105088	1020  bit/s	2105088	p_recv=33,p_total=33,speed=1024,success=8,missed_hello=0,lastseq=21302,lneigh=1

$ echo /nhdpinfo link_twohop | nc localhost 2009
eth0	192.168.21.3	192.168.21.3	192.168.230.2	false	18	ff_dat_metric	136.533 Mbit/s	15	136.533 Mbit/s	15

$ echo /olsrv2info route | nc localhost 2009
192.168.21.2	192.168.21.3	192.168.99.1	0.0.0.0/0	2	254	100	eth0	2	192.168.99.1	0	ff_dat_metric	1020  bit/s (1 hops)	2105088	1
192.168.21.3	-	192.168.99.1	0.0.0.0/0	2	254	100	eth0	2	192.168.99.1	0	ff_dat_metric	1020  bit/s (1 hops)	2105088	1


OLSRv2 Config File#######
[global]
        failfast no
        lockfile /var/lock/olsrd2
        pidfile /var/run/olsrd2.pid

[log]
        stderr true
        syslog true

[olsrv2]

[telnet]
        port 2009

[interface=eth0]

-------------- next part --------------
Node B - TP-Link AP, OpenWRT 15.05, oonf-olsrd2 - 0.9.2
------

#ifconfig
eth0.2    Link encap:Ethernet  HWaddr C4:E9:84:7D:E4:48  
          inet addr:192.168.21.3  Bcast:255.255.255.255  Mask:255.255.255.255
          inet6 addr: fe80::c6e9:84ff:fe7d:e448/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:4274 errors:0 dropped:0 overruns:0 frame:0
          TX packets:4743 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:495588 (483.9 KiB)  TX bytes:1311658 (1.2 MiB)

wlan0     Link encap:Ethernet  HWaddr C4:E9:84:7D:E4:49  
          inet addr:192.168.21.2  Bcast:255.255.255.255  Mask:255.255.255.255
          inet6 addr: fe80::c6e9:84ff:fe7d:e449/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:4439 errors:0 dropped:0 overruns:0 frame:0
          TX packets:5897 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:1812507 (1.7 MiB)  TX bytes:2103262 (2.0 MiB)
.......


# echo /nhdpinfo link | nc localhost 2009
eth0.2	192.168.99.1	20	2	19	19	39	symmetric	-	3c:97:xx:xx:42:b3	192.168.99.1	-	0	ff_dat_metric	1020  bit/s	2105088	1020  bit/s	2105088	p_recv=45,p_total=45,speed=1024,success=8,missed_hello=0,lastseq=15716,lneigh=1
wlan0	192.168.230.2	20	2	17	18	38	symmetric	fe80::c24a:ff:fe40:adc2	c0:4a:00:40:ad:c2	192.168.230.2	fe80::c24a:ff:fe40:adc2	0	ff_dat_metric	146.285 Mbit/s	14	136.533 Mbit/s	15	p_recv=33,p_total=33,speed=151414784,success=8,missed_hello=0,lastseq=46712,lneigh=2
wlan0	fe80::c24a:ff:fe40:adc2	20	2	17	18	38	symmetric	192.168.230.2	c0:4a:00:40:ad:c2	fe80::c24a:ff:fe40:adc2	192.168.230.2	0	ff_dat_metric	146.285 Mbit/s	14	136.533 Mbit/s	15	p_recv=33,p_total=33,speed=151414784,success=8,missed_hello=0,lastseq=42557,lneigh=2

# echo /nhdpinfo link_twohop | nc localhost 2009
-

# echo /olsrv2info route | nc localhost 2009
192.168.99.1	-	192.168.21.3	0.0.0.0/0	2	254	100	eth0.2	50	192.168.21.3	0	ff_dat_metric	1020  bit/s (1 hops)	2105088	1
192.168.230.2	-	192.168.21.3	0.0.0.0/0	2	254	100	wlan0	51	192.168.21.3	0	ff_dat_metric	136.533 Mbit/s (1 hops)	15	1


OLSRv2 Config##############
config global
        option 'failfast'       'no'
        option 'pidfile'        '/var/run/olsrd2.pid'
        option 'lockfile'       '/var/lock/olsrd2'

config log
        option 'syslog'         'true'
        option 'stderr'         'true'
        option 'file'           '/var/log/olsrd2.log'
        option 'debug'          'all'

config telnet
        option 'port' '2009'

config olsrv2


config interface
        option 'ifname' 'loopback'
        option 'ignore' '1'

config interface
        list 'ifname' 'on_wifi_0'
        option 'ignore' '0'

config interface
        list 'ifname' 'wan'
        option 'ignore' '0'

config interface
        list 'ifname' 'lan'
        option 'ignore' '1'

-------------- next part --------------
Node C - TP-Link AP, OpenWRT 15.05, oonf-olsrd2 - 0.9.2
------

$ ifconfig
wlan0     Link encap:Ethernet  HWaddr C0:4A:00:40:AD:C2  
          inet addr:192.168.230.2  Bcast:255.255.255.255  Mask:255.255.255.255
          inet6 addr: fe80::c24a:ff:fe40:adc2/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:256 errors:0 dropped:0 overruns:0 frame:0
          TX packets:212 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:77954 (76.1 KiB)  TX bytes:77909 (76.0 KiB)
...

# echo /nhdpinfo link | nc localhost 2009
wlan0	192.168.21.2	20	2	19	19	39	symmetric	fe80::c6e9:84ff:fe7d:e449	c4:e9:84:7d:e4:49	192.168.21.3	fe80::c6e9:84ff:fe7d:e4480ff_dat_metric	55.351 Mbit/s	37	17.066 Mbit/s	120	p_recv=19,p_total=48,speed=151414784,success=3,missed_hello=0,lastseq=42558,lneigh=2
wlan0	fe80::c6e9:84ff:fe7d:e449	20	2	19	19	39	symmetric	192.168.21.2	c4:e9:84:7d:e4:49	fe80::c6e9:84ff:fe7d:e448	192.168.21.3	0	ff_dat_metric	55.351 Mbit/s	37	17.066 Mbit/s	120	p_recv=19,p_total=48,speed=151414784,success=3,missed_hello=0,lastseq=7462,lneigh=2

# echo /nhdpinfo link_twohop | nc localhost 2009
wlan0	192.168.21.2	192.168.21.3	192.168.99.1	false	18	ff_dat_metric	1020  bit/s	2105088	1020  bit/s	2105088

# echo /olsrv2info route | nc localhost 2009
192.168.21.2	-	192.168.230.2	0.0.0.0/0	2	254	100	wlan0	44	192.168.230.2	0	ff_dat_metric	136.533 Mbit/s (1 hops)	15	1
192.168.21.3	192.168.21.2	192.168.230.2	0.0.0.0/0	2	254	100	wlan0	44	192.168.230.2	0	ff_dat_metric	136.533 Mbit/s (1 hops)	15	1


OLSRv2 Config###########
config global
        option 'failfast'       'no'
        option 'pidfile'        '/var/run/olsrd2.pid'
        option 'lockfile'       '/var/lock/olsrd2'

config log
        option 'syslog'         'true'
        option 'stderr'         'true'
        option 'file'           '/var/log/olsrd2.log'

config telnet
        option 'port' '2009'

config olsrv2


config interface
        option 'ifname' 'on_wifi_0'

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