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Warning - name already known (changing mac from '66:70:2:ed:f9:64' to '66:70:02:ED:F9:63'): frigorifico

         joseluis    0.960s   (148)            marisa [   wlan0-1]:            marisa (148)

root@nogal:~# batctl ping joseluis
PING joseluis (fa:d1:11:54:4f:0a) 20(48) bytes of data
Reply from host joseluis timed out
Reply from host joseluis timed out
Reply from host joseluis timed out
Reply from host joseluis timed out
Reply from host joseluis timed out
^C--- joseluis ping statistics ---
5 packets transmitted, 0 received, 100% packet loss
rtt min/avg/max/mdev = 0.000/0.000/0.000/0.000 ms


root@nogal:~# ping joseluis
PING joseluis (10.5.3.13): 56 data bytes
^C
--- joseluis ping statistics ---
12 packets transmitted, 0 packets received, 100% packet loss


root@nogal:~# arping -b -I br-lan joseluis
ARPING to 10.5.3.13 from 10.5.0.4 via br-lan
Unicast reply from 10.5.3.13 [f8:d1:11:54:4f:9] 21.720ms
Unicast reply from 10.5.3.13 [f8:d1:11:54:4f:9] 18.516ms
Unicast reply from 10.5.3.13 [f8:d1:11:54:4f:9] 17.776ms
Unicast reply from 10.5.3.13 [f8:d1:11:54:4f:9] 29.290ms
Unicast reply from 10.5.3.13 [f8:d1:11:54:4f:9] 17.981ms
Unicast reply from 10.5.3.13 [f8:d1:11:54:4f:9] 17.550ms
^CSent 6 probe(s) (6 broadcast(s))
Received 6 reply (0 request(s), 0 broadcast(s))
Received 6 reply (0 request(s), 0 broadcast(s))


----------------------
NOW FROM A NEIGHBORING NODE

root@coco:~# batctl o | cut -c -70 | grep joseluis
         joseluis    0.230s   (251)          joseluis [   wlan0-1]:  


## mac2bat shows the hostname related to a MAC in /etc/bat-hosts
root@coco:~# iw wlan0-1 station dump | mac2bat | grep joseluis -A 8
Station joseluis (on wlan0-1)
	inactive time:	20 ms
	rx bytes:	57642738
	rx packets:	570324
	tx packets:	2353
	tx retries:	429
	tx failed:	1
	signal:  	-53 [-66, -53] dBm
	signal avg:	-48 [-64, -48] dBm

root@coco:~# ping 10.5.3.13
PING 10.5.3.13 (10.5.3.13): 56 data bytes
^C
--- 10.5.3.13 ping statistics ---
11 packets transmitted, 0 packets received, 100% packet loss


root@coco:~# batctl ping joseluis
PING joseluis (fa:d1:11:54:4f:0a) 20(48) bytes of data
Reply from host joseluis timed out
Reply from host joseluis timed out
Reply from host joseluis timed out
Reply from host joseluis timed out
^C--- joseluis ping statistics ---
4 packets transmitted, 0 received, 100% packet loss


root@coco:~# arping -b -I br-lan 10.5.3.13
ARPING to 10.5.3.13 from 10.5.0.20 via br-lan
Unicast reply from 10.5.3.13 [f8:d1:11:54:4f:9] 12.934ms
Unicast reply from 10.5.3.13 [f8:d1:11:54:4f:9] 13.569ms
Unicast reply from 10.5.3.13 [f8:d1:11:54:4f:9] 12.814ms
Unicast reply from 10.5.3.13 [f8:d1:11:54:4f:9] 11.426ms
^CSent 4 probe(s) (4 broadcast(s))
Received 4 reply (0 request(s), 0 broadcast(s))


## Try to ping through the fe80 of the associated interface (no batman involved here)

root@coco:~# cat /etc/bat-hosts | grep joseluis
FA:D1:11:54:4F:0A joseluis

$ ipv6calc fe80:: FA:D1:11:54:4F:0A -I prefix+mac
fe80::f8d1:11ff:fe54:4f0a

root@coco:~# ping6 fe80::f8d1:11ff:fe54:4f0a%wlan0-1
PING fe80::f8d1:11ff:fe54:4f0a%wlan0-1 (fe80::f8d1:11ff:fe54:4f0a): 56 data bytes
^C
--- fe80::f8d1:11ff:fe54:4f0a%wlan0-1 ping statistics ---
10 packets transmitted, 0 packets received, 100% packet loss


checking that the ping is correct, repeating from another neighbor

root@ipem265:~#  ping6 fe80::f8d1:11ff:fe54:4f0a%wlan0-1
PING fe80::f8d1:11ff:fe54:4f0a%wlan0-1 (fe80::f8d1:11ff:fe54:4f0a): 56 data bytes
64 bytes from fe80::f8d1:11ff:fe54:4f0a: seq=0 ttl=64 time=5.957 ms
64 bytes from fe80::f8d1:11ff:fe54:4f0a: seq=1 ttl=64 time=3.335 ms

-----------

This problem seems to appear randomly. Some nodes cannot "talk" to others that are accessible through another neighbor, but the problem is not always with the same nodes. It will appear "randomly" after a full network reset.

1
2	-	Warning - name already known (changing mac from '66:70:2:ed:f9:64' to '66:70:02:ED:F9:63'): frigorifico
2	+
3		joseluis 0.960s (148) marisa [ wlan0-1]: marisa (148)
4
5		root@nogal:~# batctl ping joseluis
6		PING joseluis (fa:d1:11:54:4f:0a) 20(48) bytes of data
7		Reply from host joseluis timed out
8		Reply from host joseluis timed out
9		Reply from host joseluis timed out
10		Reply from host joseluis timed out
11		Reply from host joseluis timed out
12		^C--- joseluis ping statistics ---
13		5 packets transmitted, 0 received, 100% packet loss
14		rtt min/avg/max/mdev = 0.000/0.000/0.000/0.000 ms
15
16
17		root@nogal:~# ping joseluis
18		PING joseluis (10.5.3.13): 56 data bytes
19		^C
20		--- joseluis ping statistics ---
21		12 packets transmitted, 0 packets received, 100% packet loss
22
23
24		root@nogal:~# arping -b -I br-lan joseluis
25		ARPING to 10.5.3.13 from 10.5.0.4 via br-lan
26		Unicast reply from 10.5.3.13 [f8:d1:11:54:4f:9] 21.720ms
27		Unicast reply from 10.5.3.13 [f8:d1:11:54:4f:9] 18.516ms
28		Unicast reply from 10.5.3.13 [f8:d1:11:54:4f:9] 17.776ms
29		Unicast reply from 10.5.3.13 [f8:d1:11:54:4f:9] 29.290ms
30		Unicast reply from 10.5.3.13 [f8:d1:11:54:4f:9] 17.981ms
31		Unicast reply from 10.5.3.13 [f8:d1:11:54:4f:9] 17.550ms
32		^CSent 6 probe(s) (6 broadcast(s))
33		Received 6 reply (0 request(s), 0 broadcast(s))
34	-	Received 6 reply (0 request(s), 0 broadcast(s))
34	+
35
36		----------------------
37		NOW FROM A NEIGHBORING NODE
38
39		root@coco:~# batctl o \| cut -c -70 \| grep joseluis
40		joseluis 0.230s (251) joseluis [ wlan0-1]:
41
42
43		## mac2bat shows the hostname related to a MAC in /etc/bat-hosts
44		root@coco:~# iw wlan0-1 station dump \| mac2bat \| grep joseluis -A 8
45		Station joseluis (on wlan0-1)
46		inactive time: 20 ms
47		rx bytes: 57642738
48		rx packets: 570324
49		tx packets: 2353
50		tx retries: 429
51		tx failed: 1
52		signal: -53 [-66, -53] dBm
53		signal avg: -48 [-64, -48] dBm
54
55		root@coco:~# ping 10.5.3.13
56		PING 10.5.3.13 (10.5.3.13): 56 data bytes
57		^C
58		--- 10.5.3.13 ping statistics ---
59		11 packets transmitted, 0 packets received, 100% packet loss
60
61
62		root@coco:~# batctl ping joseluis
63		PING joseluis (fa:d1:11:54:4f:0a) 20(48) bytes of data
64		Reply from host joseluis timed out
65		Reply from host joseluis timed out
66		Reply from host joseluis timed out
67		Reply from host joseluis timed out
68		^C--- joseluis ping statistics ---
69		4 packets transmitted, 0 received, 100% packet loss
70
71
72		root@coco:~# arping -b -I br-lan 10.5.3.13
73		ARPING to 10.5.3.13 from 10.5.0.20 via br-lan
74		Unicast reply from 10.5.3.13 [f8:d1:11:54:4f:9] 12.934ms
75		Unicast reply from 10.5.3.13 [f8:d1:11:54:4f:9] 13.569ms
76		Unicast reply from 10.5.3.13 [f8:d1:11:54:4f:9] 12.814ms
77		Unicast reply from 10.5.3.13 [f8:d1:11:54:4f:9] 11.426ms
78		^CSent 4 probe(s) (4 broadcast(s))
79		Received 4 reply (0 request(s), 0 broadcast(s))
80
81
82		## Try to ping through the fe80 of the associated interface (no batman involved here)
83
84		root@coco:~# cat /etc/bat-hosts \| grep joseluis
85		FA:D1:11:54:4F:0A joseluis
86
87		$ ipv6calc fe80:: FA:D1:11:54:4F:0A -I prefix+mac
88		fe80::f8d1:11ff:fe54:4f0a
89
90		root@coco:~# ping6 fe80::f8d1:11ff:fe54:4f0a%wlan0-1
91		PING fe80::f8d1:11ff:fe54:4f0a%wlan0-1 (fe80::f8d1:11ff:fe54:4f0a): 56 data bytes
92		^C
93		--- fe80::f8d1:11ff:fe54:4f0a%wlan0-1 ping statistics ---
94		10 packets transmitted, 0 packets received, 100% packet loss
95
96
97		checking that the ping is correct, repeating from another neighbor
98
99		root@ipem265:~# ping6 fe80::f8d1:11ff:fe54:4f0a%wlan0-1
100		PING fe80::f8d1:11ff:fe54:4f0a%wlan0-1 (fe80::f8d1:11ff:fe54:4f0a): 56 data bytes
101		64 bytes from fe80::f8d1:11ff:fe54:4f0a: seq=0 ttl=64 time=5.957 ms
102		64 bytes from fe80::f8d1:11ff:fe54:4f0a: seq=1 ttl=64 time=3.335 ms
103
104		-----------
105
106		This problem seems to appear randomly. Some nodes cannot "talk" to others that are accessible through another neighbor, but the problem is not always with the same nodes. It will appear "randomly" after a full network reset.