No reply to ping over bnepX interface

Question

I have trialed to use Network, NAP profiles on Bluetooth.

On Host, xUbuntu 13.04 I have followed as here.

This Host or XUbuntu machine is behind proxy & runs on virtual machine.

It is installed with Bluetooth version 4.101

On embedded board, ping 173.194.112.211 responds as below:

PING 173.194.112.211 (173.194.112.211) 56(84) bytes of data.  
64 bytes from 173.194.112.211: icmp_req=1 ttl=46 time=336 ms

On embedded board, ifconfig shows as below:

bnep0     Link encap:Ethernet  HWaddr 3E:DA:FB:6C:EE:BC  
          inet addr:10.220.129.178  Bcast:10.255.255.255  Mask:255.0.0.0  
          inet6 addr: fe80::3cda:fbff:fe6c:eebc/64 Scope:Link  
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1  
          RX packets:14 errors:0 dropped:0 overruns:0 frame:0  
          TX packets:458 errors:0 dropped:0 overruns:0 carrier:0  
          collisions:0 txqueuelen:500  
          RX bytes:1793 (1.7 KiB)  TX bytes:36870 (36.0 KiB)  

eth0      Link encap:Ethernet  HWaddr 0C:23:C0:80:C0:E8  
          inet addr:10.122.83.127  Bcast:10.255.255.255  Mask:255.0.0.0  
          inet6 addr: fe80::e23:c0ff:fe80:c0e8/64 Scope:Link  
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1  
          RX packets:24555 errors:0 dropped:611 overruns:0 frame:0  
          TX packets:20647 errors:0 dropped:0 overruns:0 carrier:0  
          collisions:0 txqueuelen:1000  
          RX bytes:3374125 (3.2 MiB)  TX bytes:5878612 (5.6 MiB)  

lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0  
          inet6 addr: ::1/128 Scope:Host  
          UP LOOPBACK RUNNING  MTU:65536  Metric:1  
          RX packets:25809 errors:0 dropped:0 overruns:0 frame:0  
          TX packets:25809 errors:0 dropped:0 overruns:0 carrier:0  
          collisions:0 txqueuelen:0   
          RX bytes:3824780 (3.6 MiB)  TX bytes:3824780 (3.6 MiB)  

polo0     Link encap:Ethernet  HWaddr 02:00:00:00:00:01  
          inet addr:192.168.1.1  Bcast:192.168.1.255  Mask:255.255.255.0  
          inet6 addr: fe80::ff:fe00:1/64 Scope:Link  
          UP BROADCAST RUNNING MULTICAST  MTU:65536  Metric:1  
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0  
          TX packets:696 errors:0 dropped:0 overruns:0 carrier:0  
          collisions:0 txqueuelen:1000  
          RX bytes:0 (0.0 B)  TX bytes:117357 (114.6 KiB)

On embedded board, I issue command: ping -I bnep0 173.194.112.211
This is google IP address by the way :)

After long time, I press Ctrl + c, it gives this:

PING 173.194.112.211 (173.194.112.211): 56 data bytes
^C
--- 173.194.112.211 ping statistics ---
541 packets transmitted, 0 packets received, 100% packet loss

On embedded board, I also trialed changing bnep0 inet addr to: 10.122.83.128.
For sure no one has this IP address.

It did not work...

hcidump -X shows these packets when I ping, not other times.

HCI sniffer - Bluetooth packet analyzer ver 2.4
device: hci0 snap_len: 1028 filter: 0xffffffff
> ACL data: handle 38 flags 0x02 dlen 47
    L2CAP(d): cid 0x0042 len 43 [psm 0]
      0000: 00 ff ff ff ff ff ff 3e  da fb 6c ee bc 08 06 00  .......>..l.....
      0010: 01 08 00 06 04 00 01 3e  da fb 6c ee bc 0a dc 81  .......>..l.....
      0020: b2 00 00 00 00 00 00 ad  c2 70 d3                 .........p.
> ACL data: handle 38 flags 0x02 dlen 47
    L2CAP(d): cid 0x0042 len 43 [psm 0]
      0000: 00 ff ff ff ff ff ff 3e  da fb 6c ee bc 08 06 00  .......>..l.....
      0010: 01 08 00 06 04 00 01 3e  da fb 6c ee bc 0a dc 81  .......>..l.....
      0020: b2 00 00 00 00 00 00 ad  c2 70 d3                 .........p.
> ACL data: handle 38 flags 0x02 dlen 47
    L2CAP(d): cid 0x0042 len 43 [psm 0]
      0000: 00 ff ff ff ff ff ff 3e  da fb 6c ee bc 08 06 00  .......>..l.....
      0010: 01 08 00 06 04 00 01 3e  da fb 6c ee bc 0a dc 81  .......>..l.....
      0020: b2 00 00 00 00 00 00 ad  c2 70 d3                 .........p.

I wish to access internet On embedded board, over Bluetooth, via xUbuntu's Ethernet's internet connection, NOT Ethernet of embedded board.

Someone please help me to get this working.

check route on pc with command route. Maybe ping to 173.194.112.211 go to some different interface and when you add interface to ping command packet can't go back to remote host or back. — 2707974, Apr 02 '14 at 07:33
Appreciating your guidance, I have posted route output in the query above, what next? — AjayKumarBasuthkar, Apr 02 '14 at 08:00
Your default route is on eth0 interface. Try to add route add -host 173.194.112.211 gw ip_address_wich_is_gw_for_bnep0 — 2707974, Apr 02 '14 at 08:10
route now shows new record: 173.194.112.211 10.0.2.2 255.255.255.255 UGH 0 0 0 eth0.
Yet no luck, ping says not reachable... — AjayKumarBasuthkar, Apr 02 '14 at 08:16
I don't know what you say, I have one Ethernet connection to access internet over windows as well as xUbuntu on virtualBox. I guess I got to have same gw for bnep0 and eth0. How to find if I have same gateway or not? — AjayKumarBasuthkar, Apr 02 '14 at 08:24
Ok, I see. Your interfaces eth0 and bnep0 is in the same network and have same gw. Maybe can try, for test propose, to erase gw from eth0. I that case only gw will be settings on bnep0 interface. — 2707974, Apr 02 '14 at 08:43
I guess I have confused, please check the query again, I have brought more clarity. — AjayKumarBasuthkar, Apr 02 '14 at 09:26

score 0 · Accepted Answer · answered Apr 02 '14 at 12:59

0

I configured bnep0 network interface on xUbuntu 13.04 with local IP address and it workded :)

# ifconfig bnep0 192.168.1.3 up

I also guess that command route also helped.

The ping works, however, there is packet loss...

answered Apr 02 '14 at 12:59

AjayKumarBasuthkar

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No reply to ping over bnepX interface

1 Answers1