[B.A.T.M.A.N.] Can't create new originator

Hi.
I saw strange batman logs while testing a batman-adv mesh. Batman-adv module was continuously generating the same logs including a " Creating new originator: b0:c6:9b:80:01:43". But b0:c6:9b:80:01:43 never appears in the output of 'batctl o':
admin@HND-Mesh:~# batctl o
[B.A.T.M.A.N. adv 2012.0.0, MainIF/MAC: wlan0/b0:c6:9b:80:01:5b (bat0)]
  Originator      last-seen (#/255)           Nexthop [outgoingIF]:   Potential nexthops ...
b0:c6:9b:80:01:5c    0.010s   (255) b0:c6:9b:80:01:5c [     wlan0]: b0:c6:9b:80:01:5f (209) b0:c6:9b:80:01:6b (231) b0:c6:9b:80:01:6b (227) b0:c6:9b:80:01:5c (255) b0:c6:9b:80:01:5c (  0)
b0:c6:9b:80:01:45    3.830s   (223) b0:c6:9b:80:01:5f [     wlan0]: b0:c6:9b:80:01:5c (209) b0:c6:9b:80:01:6b (  0) b0:c6:9b:80:01:6b (  0) b0:c6:9b:80:01:5f (223)
b0:c6:9b:80:01:6b    4.520s   (255) b0:c6:9b:80:01:6b [     wlan0]: b0:c6:9b:80:01:5f (206) b0:c6:9b:80:01:5c (245) b0:c6:9b:80:01:6b (255) b0:c6:9b:80:01:6b (251)
b0:c6:9b:80:01:3b    1.570s   (237) b0:c6:9b:80:01:5f [     wlan0]: b0:c6:9b:80:01:5c (226) b0:c6:9b:80:01:6b (  0) b0:c6:9b:80:01:6b (  0) b0:c6:9b:80:01:5f (237)
b0:c6:9b:80:01:5f    3.520s   (255) b0:c6:9b:80:01:5f [     wlan0]: b0:c6:9b:80:01:6b (231) b0:c6:9b:80:01:6b (227) b0:c6:9b:80:01:5c (244) b0:c6:9b:80:01:5f (255)

Now I can nerver reach b0:c6:9b:80:01:43. Anyone tell me why this happens?
And, what does "Drop packet: packet within seqno protection time" mean? What is the "seqno protection time"?
Any help will be appreciated and thanks in advance.

Here is part of the looply generated logs:
[       969] Creating new originator: b0:c6:9b:80:01:43
[       969] old packet received, start protection
[       969] Drop packet: OGM via unknown neighbor!
[       969] Received BATMAN packet via NB: b0:c6:9b:80:01:57, IF: wlan0 [b0:c6:9b:80:01:5b] (from OG: b0:c6:9b:80:01:43, via prev OG: b0:c6:9b:80:01:59, seqno 109828, ttvn 6, crc 5961, changes 0, td 229, TTL 48, V 14, IDF 0)
[       969] Drop packet: packet within seqno protection time (sender: b0:c6:9b:80:01:57)
[       969] Sending own packet (originator b0:c6:9b:80:01:56, seqno 1251, TTL 2) on interface wlan1 [b0:c6:9b:80:01:56]
[       969] Received BATMAN packet via NB: b0:c6:9b:80:01:56, IF: wlan0 [b0:c6:9b:80:01:5b] (from OG: b0:c6:9b:80:01:56, via prev OG: b0:c6:9b:80:01:56, seqno 1251, ttvn 2, crc 51283, changes 0, td 255, TTL 2, V 14, IDF 0)
[       969] Drop packet: received my own broadcast (sender: b0:c6:9b:80:01:56)
[       969] Received BATMAN packet via NB: b0:c6:9b:80:01:6b, IF: wlan0 [b0:c6:9b:80:01:5b] (from OG: b0:c6:9b:80:01:56, via prev OG: b0:c6:9b:80:01:56, seqno 1251, ttvn 2, crc 51283, changes 0, td 233, TTL 1, V 14, IDF 1)
[       969] Drop packet: originator packet from myself (via neighbor)
[       969] Received BATMAN packet via NB: b0:c6:9b:80:01:6b, IF: wlan1 [b0:c6:9b:80:01:56] (from OG: b0:c6:9b:80:01:56, via prev OG: b0:c6:9b:80:01:56, seqno 1251, ttvn 2, crc 51283, changes 0, td 233, TTL 1, V 14, IDF 1)
[       969] Drop packet: originator packet from myself (via neighbor)
[       969] Sending own packet (originator b0:c6:9b:80:01:5b, seqno 1251, TQ 255, TTL 50, IDF off, ttvn 2) on interface wlan0 [b0:c6:9b:80:01:5b]
[       969] Sending own packet (originator b0:c6:9b:80:01:5b, seqno 1251, TQ 255, TTL 50, IDF off, ttvn 2) on interface wlan1 [b0:c6:9b:80:01:56]
[       969] Received BATMAN packet via NB: b0:c6:9b:80:01:5b, IF: wlan1 [b0:c6:9b:80:01:56] (from OG: b0:c6:9b:80:01:5b, via prev OG: b0:c6:9b:80:01:5b, seqno 1251, ttvn 2, crc 51283, changes 0, td 255, TTL 50, V 14, IDF 0)
[       969] Drop packet: received my own broadcast (sender: b0:c6:9b:80:01:5b)
[       969] Received BATMAN packet via NB: b0:c6:9b:80:01:56, IF: wlan0 [b0:c6:9b:80:01:5b] (from OG: b0:c6:9b:80:01:5b, via prev OG: b0:c6:9b:80:01:5b, seqno 1251, ttvn 2, crc 51283, changes 0, td 255, TTL 50, V 14, IDF 0)
[       969] Drop packet: received my own broadcast (sender: b0:c6:9b:80:01:56)
[       969] Received BATMAN packet via NB: b0:c6:9b:80:01:5d, IF: wlan1 [b0:c6:9b:80:01:56] (from OG: b0:c6:9b:80:01:5d, via prev OG: b0:c6:9b:80:01:5d, seqno 1246, ttvn 2, crc 38681, changes 0, td 255, TTL 2, V 14, IDF 0)
[       969] updating last_seqno: old 1245, new 1246
[       969] bidirectional: orig = b0:c6:9b:80:01:5d neigh = b0:c6:9b:80:01:5d => own_bcast =  0, real recv = 62, local tq:   0, asym_penalty: 255, total tq:   0
[       969] Forwarding packet: tq_orig: 0, tq_avg: 0, tq_forw: 0, ttl_orig: 1, ttl_forw: 1
[       969] Forwarding packet: rebroadcast neighbor packet with direct link flag
[       969] Received BATMAN packet via NB: b0:c6:9b:80:01:5d, IF: wlan0 [b0:c6:9b:80:01:5b] (from OG: b0:c6:9b:80:01:5d, via prev OG: b0:c6:9b:80:01:5d, seqno 1246, ttvn 2, crc 38681, changes 0, td 255, TTL 2, V 14, IDF 0)

80 more lines

Hi,

I saw strange batman logs while testing a batman-adv mesh. Batman-adv
module was continuously generating the same logs including a " Creating
new originator: b0:c6:9b:80:01:43". But b0:c6:9b:80:01:43 never appears in
the output of 'batctl o': admin@HND-Mesh:~# batctl o
[B.A.T.M.A.N. adv 2012.0.0, MainIF/MAC: wlan0/b0:c6:9b:80:01:5b (bat0)]
  Originator      last-seen (#/255)           Nexthop
[outgoingIF]:   Potential nexthops ... b0:c6:9b:80:01:5c    0.010s   (255)
b0:c6:9b:80:01:5c [     wlan0]: b0:c6:9b:80:01:5f (209) b0:c6:9b:80:01:6b
(231) b0:c6:9b:80:01:6b (227) b0:c6:9b:80:01:5c (255) b0:c6:9b:80:01:5c
(  0) b0:c6:9b:80:01:45    3.830s   (223) b0:c6:9b:80:01:5f [     wlan0]:
b0:c6:9b:80:01:5c (209) b0:c6:9b:80:01:6b (  0) b0:c6:9b:80:01:6b (  0)
b0:c6:9b:80:01:5f (223) b0:c6:9b:80:01:6b    4.520s   (255)
b0:c6:9b:80:01:6b [     wlan0]: b0:c6:9b:80:01:5f (206) b0:c6:9b:80:01:5c
(245) b0:c6:9b:80:01:6b (255) b0:c6:9b:80:01:6b (251)
b0:c6:9b:80:01:3b    1.570s   (237) b0:c6:9b:80:01:5f [     wlan0]:
b0:c6:9b:80:01:5c (226) b0:c6:9b:80:01:6b (  0) b0:c6:9b:80:01:6b (  0)
b0:c6:9b:80:01:5f (237) b0:c6:9b:80:01:5f    3.520s   (255)
b0:c6:9b:80:01:5f [     wlan0]: b0:c6:9b:80:01:6b (231) b0:c6:9b:80:01:6b
(227) b0:c6:9b:80:01:5c (244) b0:c6:9b:80:01:5f (255)

Now I can nerver reach b0:c6:9b:80:01:43. Anyone tell me why this happens?

according to your logs OGMs from b0:c6:9b:80:01:43 are received via nodes that 
are not in your routing table either:
 * b0:c6:9b:80:01:57
 * b0:c6:9b:80:01:6c

Therefore you see the warning: Drop packet: OGM via unknown neighbor!
Batman-adv can't create a route to a an originator without having a next hop. 

Do all nodes in your network run the same batman-adv version (2012.0.0) ?

Regards,
Marek

Hi, Marek.
Every nodes run the same version of batman.
I attatch the topology of my mesh network.When b0:c6:9b:80:01:53 is on (working),b0:c6:9b:80:01:5f can reach b0:c6:9b:80:01:43,and the hole network is ok.b0:c6:9b:80:01:5b's nexthop to b0:c6:9b:80:01:43 is b0:c6:9b:80:01:57 or b0:c6:9b:80:01:6c, and sometimes b0:c6:9b:80:01:53.
But when I shut b0:c6:9b:80:01:53 down,it seems b0:c6:9b:80:01:5b can't reach b0:c6:9b:80:01:57 neither b0:c6:9b:80:01:6c,as I mentioned in my firt email.
When I turn b0:c6:9b:80:01:53 on again,the hole mesh is ok again.
Marek,can you tell me what the problem probably is.

-----Original Message-----
From: Marek Lindner [mailto:<redacted>]
Sent: Saturday, May 26, 2012 10:55 PM
To: <redacted>
Cc: puyou.lu
Subject: Re: [B.A.T.M.A.N.] Can't create new originator


Hi,

quoted

I saw strange batman logs while testing a batman-adv mesh. Batman-adv
module was continuously generating the same logs including a " Creating
new originator: b0:c6:9b:80:01:43". But b0:c6:9b:80:01:43 never appears in
the output of 'batctl o': admin@HND-Mesh:~# batctl o
[B.A.T.M.A.N. adv 2012.0.0, MainIF/MAC: wlan0/b0:c6:9b:80:01:5b (bat0)]
  Originator      last-seen (#/255)           Nexthop
[outgoingIF]:   Potential nexthops ... b0:c6:9b:80:01:5c    0.010s   (255)
b0:c6:9b:80:01:5c [     wlan0]: b0:c6:9b:80:01:5f (209) b0:c6:9b:80:01:6b
(231) b0:c6:9b:80:01:6b (227) b0:c6:9b:80:01:5c (255) b0:c6:9b:80:01:5c
(  0) b0:c6:9b:80:01:45    3.830s   (223) b0:c6:9b:80:01:5f [     wlan0]:
b0:c6:9b:80:01:5c (209) b0:c6:9b:80:01:6b (  0) b0:c6:9b:80:01:6b (  0)
b0:c6:9b:80:01:5f (223) b0:c6:9b:80:01:6b    4.520s   (255)
b0:c6:9b:80:01:6b [     wlan0]: b0:c6:9b:80:01:5f (206) b0:c6:9b:80:01:5c
(245) b0:c6:9b:80:01:6b (255) b0:c6:9b:80:01:6b (251)
b0:c6:9b:80:01:3b    1.570s   (237) b0:c6:9b:80:01:5f [     wlan0]:
b0:c6:9b:80:01:5c (226) b0:c6:9b:80:01:6b (  0) b0:c6:9b:80:01:6b (  0)
b0:c6:9b:80:01:5f (237) b0:c6:9b:80:01:5f    3.520s   (255)
b0:c6:9b:80:01:5f [     wlan0]: b0:c6:9b:80:01:6b (231) b0:c6:9b:80:01:6b
(227) b0:c6:9b:80:01:5c (244) b0:c6:9b:80:01:5f (255)

Now I can nerver reach b0:c6:9b:80:01:43. Anyone tell me why this happens?

according to your logs OGMs from b0:c6:9b:80:01:43 are received via nodes that
are not in your routing table either:
 * b0:c6:9b:80:01:57
 * b0:c6:9b:80:01:6c

Therefore you see the warning: Drop packet: OGM via unknown neighbor!
Batman-adv can't create a route to a an originator without having a next hop.

5 more quoted lines

On Monday, May 28, 2012 09:23:11 puyou.lu wrote:

Every nodes run the same version of batman.
I attatch the topology of my mesh network.When b0:c6:9b:80:01:53 is on
(working),b0:c6:9b:80:01:5f can reach b0:c6:9b:80:01:43,and the hole
network is ok.b0:c6:9b:80:01:5b's nexthop to b0:c6:9b:80:01:43 is
b0:c6:9b:80:01:57 or b0:c6:9b:80:01:6c, and sometimes b0:c6:9b:80:01:53.
But when I shut b0:c6:9b:80:01:53 down,it seems b0:c6:9b:80:01:5b can't
reach b0:c6:9b:80:01:57 neither b0:c6:9b:80:01:6c,as I mentioned in my
firt email. When I turn b0:c6:9b:80:01:53 on again,the hole mesh is ok
again.
Marek,can you tell me what the problem probably is.

The mesh connections are too weak without b0:c6:9b:80:01:53 ? 
I don't really have an idea what your setup is and how it looks like to draw 
any meaningful conclusion.

Regards,
Marek