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can't connect the device running coap server example

Hello, I set up the environment by This. Now I can ping the device on the raspberry pi. How ever, When I run the python client example on My ubuntu-14.04 and try to connect the bluetooth. the result is "aiocoap.error.RequestTimedOut".

I connect the rpi to my pc by a cable and each of them can ping each other. My connection is like this:

PC<-cable->RPI <-bluetooth->PCA10028

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  • I ping on my pc (windows 7) ping -6 fe80::24b:e3ff:fec6:1cc1 and it return “Destination host unreachable”. But ping on rpi is ok ping6 -I fe80::24b:e3ff:fec6:1cc1

    In the python script I change the SERVER_ADDR

    SERVER_ADDR = 'FE80::24B:E3FF:FEC6:1CC1'
    
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  • I ping on my pc (windows 7) ping -6 fe80::24b:e3ff:fec6:1cc1 and it return “Destination host unreachable”. But ping on rpi is ok ping6 -I fe80::24b:e3ff:fec6:1cc1

    In the python script I change the SERVER_ADDR

    SERVER_ADDR = 'FE80::24B:E3FF:FEC6:1CC1'
    
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