Hello,
2014-12-11 17:31 GMT+01:00 Alexander Aring <alex.aring@xxxxxxxxx>:
> No, please forget the complete tutorial with iz.
>
> You need to set a pan_id. "iwpan dev wpan0 set pan_id 0xbeef" or something else
> Then create a lowpan interface with:
>
> ip link add link wpan0 name lowpan0 type lowpan
>
> lowpan0 is now your ipv6 interface which use 6LoWPAN.
I tried to follow instructions above and I have trouble changing
pan_id. When I execute command:
sudo iwpan --debug dev wpan0 set pan_id 0xabcd
I get following output:
-- Debug: Sent Message:
-------------------------- BEGIN NETLINK MESSAGE ---------------------------
[NETLINK HEADER] 16 octets
.nlmsg_len = 36
.type = 21 <0x15>
.flags = 5 <REQUEST,ACK>
.seq = 1420571541
.port = -1023407865
[GENERIC NETLINK HEADER] 4 octets
.cmd = 10
.version = 0
.unused = 0
[PAYLOAD] 16 octets
08 00 03 00 02 00 00 00 06 00 09 00 cd ab 00 00 ................
--------------------------- END NETLINK MESSAGE ---------------------------
-- Debug: Received Message:
-------------------------- BEGIN NETLINK MESSAGE ---------------------------
[NETLINK HEADER] 16 octets
.nlmsg_len = 56
.type = 2 <ERROR>
.flags = 0 <>
.seq = 1420571541
.port = -1023407865
[ERRORMSG] 20 octets
.error = -16 "Device or resource busy"
[ORIGINAL MESSAGE] 16 octets
.nlmsg_len = 16
.type = 21 <0x15>
.flags = 5 <REQUEST,ACK>
.seq = 1420571541
.port = -1023407865
--------------------------- END NETLINK MESSAGE ---------------------------
command failed: Device or resource busy (-16)
I am using Raspberry Pi with Raspbian, and bluetooth-next branch
kernel (cloned today). I am using 802.15.4 hardware from openlabs.
Physical interface is recognized correctly:
pi@raspberrypi ~ $ iwpan phy
wpan_phy wpan-phy0
supported channels:
page 0: 11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26
current_page: 0
current_channel: 26
cca_mode: 1
tx_power: 0
Network wpan0 interface is created automatically on startup:
pi@raspberrypi ~ $ iwpan dev
phy#0
Interface wpan0
ifindex 2
wpan_dev 0x1
extended_addr 0xf9045327f9757da8
short_addr 0xffff
pan_id 0xffff
type node
max_frame_retries -1
min_be 3
max_be 5
max_csma_backoffs 4
lbt 0
I can create lowpan interface without problems (sudo ip link add link
wpan0 name lowpan0 type lowpan). It sends valid 6LoWPAN packets (I use
external sniffer), but pan_id remains 0xffff.
When I use old linux-wpan-next branch and old lowpan-tools, problem
doesn't occur.
I tried to bring wpan0 interface down (sudo ifconfig wpan0 down), but
it doesn't help.
Does anyone have the same problem?
Best Regards
Maciej Wasilak
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