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pinging a NODE and DUPlicate packets

 
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jancici
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Joined: 21 Mar 2008
Posts: 436

PostPosted: Fri Mar 19, 2010 8:25 am    Post subject: pinging a NODE and DUPlicate packets Reply with quote

it was NOT happening before
now, when I am connect to any node of my network and pinging a default route I am receiving DUP packet.

wifi status
Code:
> scan
OK
> scan
OK
> scan_results
<2>CTRL-EVENT-SCAN-RESULTS
bssid / frequency / signal level / flags / ssid
00:4f:62:00:6f:2b   2472   169   [WEP]   stekal
06:15:6d:ad:33:16   2437   199      www.susedia.sk
06:15:6d:d6:4e:15   2437   173      www.susedia.sk
> status
bssid=06:15:6d:ad:33:16
ssid=www.susedia.sk
id=2
pairwise_cipher=NONE
group_cipher=NONE
key_mgmt=NONE
wpa_state=COMPLETED
ip_address=101.51.22.7


network
Code:
> root@frodo ~ # ip ro
101.51.22.0/24 dev wlan0  scope link  metric 2003
127.0.0.0/8 via 127.0.0.1 dev lo
default via 101.51.22.1 dev wlan0  metric 2003
Code:
root@frodo ~ # ping 101.51.22.1
PING 101.51.22.1 (101.51.22.1) 56(84) bytes of data.
64 bytes from 101.51.22.1: icmp_seq=1 ttl=64 time=2.53 ms
64 bytes from 101.51.22.1: icmp_seq=1 ttl=64 time=4.67 ms (DUP!)
64 bytes from 101.51.22.1: icmp_seq=2 ttl=64 time=2.05 ms
64 bytes from 101.51.22.1: icmp_seq=2 ttl=64 time=4.14 ms (DUP!)
64 bytes from 101.51.22.1: icmp_seq=3 ttl=64 time=2.12 ms
64 bytes from 101.51.22.1: icmp_seq=3 ttl=64 time=4.30 ms (DUP!)
64 bytes from 101.51.22.1: icmp_seq=4 ttl=64 time=2.25 ms
64 bytes from 101.51.22.1: icmp_seq=4 ttl=64 time=4.21 ms (DUP!)
64 bytes from 101.51.22.1: icmp_seq=5 ttl=64 time=2.23 ms
64 bytes from 101.51.22.1: icmp_seq=5 ttl=64 time=4.18 ms (DUP!)
64 bytes from 101.51.22.1: icmp_seq=6 ttl=64 time=4.26 ms
64 bytes from 101.51.22.1: icmp_seq=6 ttl=64 time=4.40 ms (DUP!)
^C
--- 101.51.22.1 ping statistics ---
6 packets transmitted, 6 received, +6 duplicates, 0% packet loss, time 5005ms
rtt min/avg/max/mdev = 2.053/3.449/4.678/1.037 ms


I am connected over wifi from laptop, but same behavior is on PC connected over cable to repeater.

login into a node and pinging a laptop back
Code:
root@bull_dvojka:~# ping 101.51.22.7   
PING 101.51.22.7 (101.51.22.7): 56 data bytes
64 bytes from 101.51.22.7: seq=0 ttl=64 time=6.209 ms
64 bytes from 101.51.22.7: seq=1 ttl=64 time=3.877 ms
64 bytes from 101.51.22.7: seq=2 ttl=64 time=3.464 ms
64 bytes from 101.51.22.7: seq=3 ttl=64 time=3.766 ms
64 bytes from 101.51.22.7: seq=4 ttl=64 time=4.617 ms
64 bytes from 101.51.22.7: seq=5 ttl=64 time=2.798 ms
64 bytes from 101.51.22.7: seq=6 ttl=64 time=3.958 ms
^C
--- 101.51.22.7 ping statistics ---
7 packets transmitted, 7 packets received, 0% packet loss
round-trip min/avg/max = 2.798/4.098/6.209 ms

thats working

all nodes running last stable firmware

WHAT is the reason of receiving DUPLICATE packet as answer to ping from NODE??
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ispyisail
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Joined: 12 Sep 2008
Posts: 4604
Location: New Zealand

PostPosted: Fri Apr 02, 2010 4:48 pm    Post subject: Reply with quote

hardware?

robin version?

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jancici
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Joined: 21 Mar 2008
Posts: 436

PostPosted: Fri Apr 02, 2010 8:35 pm    Post subject: Reply with quote

bullet2, loco2, pico2

I did find out that:
this is happing in network with coovaOM
in network with nodogsplash it is okay
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jancici
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Joined: 21 Mar 2008
Posts: 436

PostPosted: Sat Apr 17, 2010 8:07 pm    Post subject: Reply with quote

it is only me that can see those DUP packages ??
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