libcoap
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obgm
Seperate response send Error
Hi, I am using libcoap 4.1.2 latest library,And compiled for linux,But the seperate response send error is coming on each async messages.
Client
Step 1: Get the async handler Step 2: Recvd the empty ACK Server
Step 1: Recvd the Get request Step 2: Send the empty ACK Step 3: After 5 seconds Step 4: Server trying to send data,But it shows (coap_send_impl: invalid argument)
Note ( I just downloaded and compiled,Nothing added extra)
Well, I assume you have at least started the example client and server, no? Could you please repeat that test with the additional option '-v9' for server and client and provide the commands and the debug output here? From you description, the reason for this error could be anything.
My client is Mozila firefox (Coap addon Module)
Server debug output
Jun 19 10:31:40 DEBG created endpoint [::]:5683 Jun 19 10:31:54 DEBG received 12 bytes on fd 3 v:1 t:CON c:GET i:4640 {} [ Uri-Path:async, Block2:0/_/128 ] Jun 19 10:31:54 DEBG call custom handler for resource 0x9e1d252e Jun 19 10:31:54 CRIT Sending message ipv6 Jun 19 10:31:54 CRIT Sending message 4 len 3 fd Jun 19 10:32:02 CRIT Sending message ipv6 Jun 19 10:32:02 CRIT coap_send_impl: Invalid argument Jun 19 10:32:02 DEBG check_async: cannot send response for message 12695
Try binding the server explicitly to one of your IPv6 interfaces. If this does not work, could you please provide a wireshark trace of the coap message flow on the server's interface?
You are absolutely right!!!!! It worked for the ipv6 interface,as well as the ipv4.
I was connecting from a client by giving the 1pv4 address as its destination,But my server was listening on [::]:5683 (default case) . And am able ping and discover, other activity, But the separate responses are not coming. Is that an issue?
or else i need to bind with 0.0.0.0, because some of my device does not have ipv6 support