ping: 00:F3:BB:14:2E:9D: Temporary failure in name resolution

[shohidur]

Hi,

I am running IoT LWM2m example. Everything were going fine since yesterday. when I do hcitool lescan, i see   following output:

hcitool lescan
LE Scan ...
28:45:8B:88:6B:B8 (unknown)
00:F3:BB:14:2E:9D LWM2M_Client
00:F3:BB:14:2E:9D (unknown)

then i connect with following command:

"connect 00:F3:BB:14:2E:9D 1" > /sys/kernel/debug/bluetooth/6lowpan_control

It connects the device.

The problem is when i try following command i see following error message:

ping6 -I bt0 00:F3:BB:14:2E:9D
ping: 00:F3:BB:14:2E:9D: Temporary failure in name resolution

However after that i can assign two different IPv6 addresses to bt0 interface.

On one IP i ran leshan boostrap and on other i ran the leshan server.

Nothing wrong so far, But after a while i see that bt0 interface is down and LWM2M client's led one in blinking.

My questions:
1) Why I can not ping by link local address
2) Why interface goes down automatically ?

[Turbo J]

That 00:F3:BB:14:2E:9D  is not a valid IPv6 address - waay too few bits.

You cannot use ping6 with 48-bit hardware addresses, but there is a way to calculate an IPv6 address from a hardware address.

[shohidur]

OK, but why bt0 interface become down after awhile even I assign two ip address ? Before interface go down i can ping bt0 interface with assigned IPs. any idea why ?

[Edvin]

Can you post the entire log from you start scanning with the linux router, until you are connected (including all the connection logs)?

It is correct as Turbo J says, that you can't ping6 a BLE address. You must use an IPv6 address.

BR,

Edvin

[shohidur]

Hi,
Thanks, i am creating another post, describing in details