Hello.
On 23.03.21 22:14, Mark Butsch wrote:
Hello,
Sorry if this has all been asked before.
I am trying to setup a 6lowpan network using a Raspberry Pi 400 and Atmel REB233-XPRO modules (AT86RF233). I have 2 of each.
I have wired the radio modules to the Raspberry Pi GPIO connector.
If have created a device tree overlay that I think works when applied because I see this in the dmesg output:
[ 36.388574] at86rf230 spi0.0: Detected at86rf233 chip version 2
I have installed 'wpan-tools' and 'lowpan-tools'
You will need wpan-tools only. lowpan tools is deprecated for a long
time now.
I get what looks like good output when I run:
$ iwpan dev wpan0 info
Interface wpan0
ifindex 4
wpan_dev 0x1
extended_addr 0xc62e26eced5de562
short_addr 0xffff
pan_id 0xffff
type node
max_frame_retries 3
min_be 3
max_be 5
max_csma_backoffs 4
lbt 0
ackreq_default 0
I tried to setup a 6lowpan network (based on things I googled) but pings didn't work, so I am starting over trying to confirm the lower level parts are working first.
I set the pan_id to 0xabba on both systems.
I set the short_addr to 0x0001 on one and 0x0002 on the other.
When I try using wpan-ping (from 0x0001), I get:
$ wpan-ping -a 0x0002 -c 5
PING 0x0002 (PAN ID 0xabba) 5 data bytes
Hit 500 ms packet timeout
Hit 500 ms packet timeout
Hit 500 ms packet timeout
Hit 500 ms packet timeout
Hit 500 ms packet timeout
Do you actually run wpan-ping in server mode on the other node? Without
it there would be no reply. Its different from the normal ping utility.
I used "ip link set wpan0 up" (on both systems) and the result is the same, but I can see packets in wireshark on wpan0.
A hardware person here suggested using a near field probe to see if we could detect any transmission. We didn't. So I don't know if the radios are actually transmitting.
Any suggestions on where to go next?
For wpan-ping you need to ahve the server on the other node as stated above.
For your 6lowpan ping6 problem I have not enough description of the
actual problem to help you.
regards
Stefan Schmidt
