Problem communicated with IPV4 server

[yannS2016]

Hello there!

I am experiencing with iotivityn constrained on avr device(arduino mega)!

i could port iotivity to it! but a m facing an issue when deploying arduino as aserver?

can you guys take a look at this logs:

`Incoming message of size 199 bytes from [196.24.225.38]:56789

DEBUG: ../../api/oc_buffer.c <process_thread_message_buffer_handler:158>: Inbound network event: decrypted request
DEBUG: ../../messaging/coap/engine.c <coap_receive:124>: CoAP Engine: received datalen=199 from
DEBUG: ../../messaging/coap/engine.c <coap_receive:125>: [196.24.225.38]:56789
DEBUG: ../../messaging/coap/engine.c <coap_receive:126>: 58 45 C6 09 DC 36 B4 05 FC 4E BC A8 C2 27 10 E2 06 EC 08 00 FF 9F BF 66 61 6E 63 68 6F 72 78 2A 6F 63 66 3A 2F 2F 66 65 35 35 30 30 30 30 2D 30 39 35 64 2D 34 30 30 30 2D 34 66 30 34 2D 30 30 30 30 35 31 33 33 30 30 30 30 64 68 72 65 66 68 2F 61 2F 6C 69 67 68 74 62 72 74 9F 6A 63 6F 72 65 2E 6C 69 67 68 74 70 63 6F 72 65 2E 62 72 69 67 68 74 6C 69 67 68 74 FF 62 69 66 9F 69 6F 69 63 2E 69 66 2E 72 77 6F 6F 69 63 2E 69 66 2E 62 61 73 65 6C 69 6E 65 FF 61 70 BF 62 62 6D 03 FF 63 65 70 73 9F BF 62 65 70 78 18 63 6F 61 70 3A 2F 2F 34 39 2E 35 37 2E 35 34 2E 34 36 3A 35 36 37 38 39 FF FF FF FF
DEBUG: ../../messaging/coap/coap.c <coap_parse_token_option:448>: Token (len 8)
DEBUG: ../../messaging/coap/coap.c <coap_parse_token_option:449>: DC 36 B4 05 FC 4E BC A8
DEBUG: ../../messaging/coap/coap.c <coap_parse_token_option:506>: OPTION 12 (delta 12, len 2):
DEBUG: ../../messaging/coap/coap.c <coap_parse_token_option:518>: Content-Format [10000]
DEBUG: ../../messaging/coap/coap.c <coap_parse_token_option:667>: Content-format/accept-Version: [2048]
DEBUG: ../../messaging/coap/coap.c <coap_parse_token_option:683>: -Done parsing-------
DEBUG: ../../messaging/coap/engine.c <coap_receive:162>: Parsed: CoAP version: 1, token: 0xDC36, mid: 50697
DEBUG: ../../messaging/coap/engine.c <coap_receive:168>: type: NON
DEBUG: ../../messaging/coap/engine.c <coap_receive:567>: created new response buffer for uri oic/res
DEBUG: ../../messaging/coap/engine.c <coap_receive:577>: got response buffer for uri oic/res
DEBUG: ../../messaging/coap/engine.c <coap_receive:591>: processing incoming block
DEBUG: ../../messaging/coap/engine.c <coap_receive:616>: calling oc_ri_invoke_client_cb
Resource /a/light hosted at endpoints:
[49.57.54.46]:56789
DEBUG: ../../messaging/coap/transactions.c <coap_new_transaction:89>: Created new transaction 17773: 0x18ee190
DEBUG: ../../messaging/coap/coap.c <coap_serialize_options:344>: Caculating size of options
DEBUG: ../../messaging/coap/coap.c <coap_serialize_message:921>: -Serializing MID 17773 to 0x18ecf40
DEBUG: ../../messaging/coap/coap.c <coap_serialize_message:931>: Token (len 8)
DEBUG: ../../messaging/coap/coap.c <coap_serialize_message:932>: 01 8B 0D 90 68 B3 CB 0C
DEBUG: ../../messaging/coap/coap.c <coap_serialize_options:342>: Serializing options at 0x18ecf4c
DEBUG: ../../messaging/coap/coap.c <coap_serialize_array_option:213>: ARRAY type 11, len 7, full [a/light]
DEBUG: ../../messaging/coap/coap.c <coap_serialize_array_option:224>: STEP 0/7 (a)
DEBUG: ../../messaging/coap/coap.c <coap_serialize_array_option:224>: STEP 1/7 (/)
DEBUG: ../../messaging/coap/coap.c <coap_set_option_header:147>: WRITTEN 1 B opt header
DEBUG: ../../messaging/coap/coap.c <coap_serialize_array_option:245>: OPTION type 11, delta 11, len 2, part [a]
DEBUG: ../../messaging/coap/coap.c <coap_serialize_array_option:224>: STEP 3/7 (i)
DEBUG: ../../messaging/coap/coap.c <coap_serialize_array_option:224>: STEP 4/7 (g)
DEBUG: ../../messaging/coap/coap.c <coap_serialize_array_option:224>: STEP 5/7 (h)
DEBUG: ../../messaging/coap/coap.c <coap_serialize_array_option:224>: STEP 6/7 (t)
DEBUG: ../../messaging/coap/coap.c <coap_serialize_array_option:224>: STEP 7/7 ()
DEBUG: ../../messaging/coap/coap.c <coap_set_option_header:147>: WRITTEN 1 B opt header
DEBUG: ../../messaging/coap/coap.c <coap_serialize_array_option:245>: OPTION type 11, delta 0, len 8, part [light]
DEBUG: ../../messaging/coap/coap.c <coap_serialize_options:364>: Uri-Path [a/light]
DEBUG: ../../messaging/coap/coap.c <coap_serialize_options:366>: Serialize content format: 10000
DEBUG: ../../messaging/coap/coap.c <coap_serialize_int_option:172>: OPTION 12 (delta 1, len 2)
DEBUG: ../../messaging/coap/coap.c <coap_set_option_header:147>: WRITTEN 1 B opt header
DEBUG: ../../messaging/coap/coap.c <coap_serialize_options:369>: Content-Format [10000]
DEBUG: ../../messaging/coap/coap.c <coap_serialize_int_option:172>: OPTION 17 (delta 5, len 2)
DEBUG: ../../messaging/coap/coap.c <coap_set_option_header:147>: WRITTEN 1 B opt header
DEBUG: ../../messaging/coap/coap.c <coap_serialize_options:374>: Accept [10000]
DEBUG: ../../messaging/coap/coap.c <coap_serialize_int_option:172>: OPTION 2049 (delta 2032, len 2)
DEBUG: ../../messaging/coap/coap.c <coap_set_option_header:147>: WRITTEN 3 B opt header
DEBUG: ../../messaging/coap/coap.c <coap_serialize_int_option:172>: OPTION 2053 (delta 4, len 2)
DEBUG: ../../messaging/coap/coap.c <coap_set_option_header:147>: WRITTEN 1 B opt header
DEBUG: ../../messaging/coap/coap.c <coap_serialize_options:435>: -Done serializing at 0x18ecf62----
DEBUG: ../../messaging/coap/coap.c <coap_serialize_message:960>: -Done 34 B (header len 34, payload len 0)-
DEBUG: ../../messaging/coap/coap.c <coap_serialize_message:962>: Dump
DEBUG: ../../messaging/coap/coap.c <coap_serialize_message:963>: 58 01 45 6D 01 8B 0D 90
DEBUG: ../../messaging/coap/transactions.c <coap_send_transaction:116>: Sending transaction(len: 34) 17773: 0x18ee190
DEBUG: ../../messaging/coap/transactions.c <coap_send_transaction:117>: 58 01 45 6D 01 8B 0D 90 68 B3 CB 0C B1 61 05 6C 69 67 68 74 12 27 10 52 27 10 E2 06 E3 08 00 42 08 00
DEBUG: ../../messaging/coap/coap.c <coap_send_message:975>: -sending OCF message (34)-
DEBUG: ../../messaging/coap/transactions.c <coap_clear_transaction:194>: Freeing transaction 17773: 0x18ee190
DEBUG: ../../api/oc_buffer.c <process_thread_message_buffer_handler:193>: Outbound network event: unicast message
Outgoing message of size 34 bytes to [49.57.54.46]:56789

DEBUG: ipadapter.c <send_msg:1026>: Sent 34 bytes
`
this part of what i get runnin the simpleclient:

now here is the problem, my arduino server is running at unicast IP: 196.24.225.38 at port 56789
this what the ipadapter part of the linux port return as expected.

but when the iotivity stack build the discovery response somehow the ip addres becomes this
calling oc_ri_invoke_client_cb Resource /a/light hosted at endpoints: [49.57.54.46]:56789
why would it change the ip to this value( also where is this coming from?).

i could tell that this was the reason i got nothing from the server.

so i forcefully went into the simpleclient.c code and force it to use the arduino server IP in the discovery response and it proceeded as expected?

can one provide some help in this regard

I would like to share my development setup with the community, i wonder if a branch can be allocated to this port.