mogenson opened a new issue, #6683:
URL: https://github.com/apache/incubator-nuttx/issues/6683
Hello, I have a board with an esp32 WROVER module. My board is connected to
my WiFi router and has obtained an IP address from DHCP. I can ping my board.
However, I'm having some trouble getting the tcpecho example app to accept a
connection and echo received data.
Netcat will immediately terminate:
```
$ nc 192.168.86.38 80 -v
Connection to 192.168.86.38 port 80 [tcp/http] succeeded!
```
Below is a Python TCP client:
```python
import socket
HOST = "192.168.86.38" # The server's hostname or IP address
PORT = 80 # The port used by the server
with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as s:
s.connect((HOST, PORT))
s.sendall(b"Hello, world")
data = s.recv(1024)
print(f"Received {data!r}")
```
It fails with the following traceback:
```
Traceback (most recent call last):
File "tcp-echo-client.py", line 11, in <module>
data = s.recv(1024)
ConnectionResetError: [Errno 54] Connection reset by peer
```
I've attached the
[defconfig](https://github.com/apache/incubator-nuttx/files/9163725/defconfig.txt)
for my nuttx build. I'm using the master branch for nuttx and apps. I've
enabled INFO debug logs for network and wireless. The `tcpecho` app does not
print anything besides "Start echo server". I kill it with `Ctrl-C` after a
minute. Here's a terminal output from NSH:
```
dmesg
esp32_rng_initialize: Initializing RNG
I (15) wifi:wifi driver task: 4, prio:253, stack:6656, core=0
I (16) wifi:wifi firmware version: b27fd2e
I (16) wifi:wifi certification version: v7.0
I (16) wifi:config NVS flash: disabled
I (16) wifi:config nano formating: disabled
I (17) wifi:Init data frame dynamic rx buffer num: 32
I (17) wifi:Init management frame dynamic rx buffer num: 32
I (17) wifi:Init management short buffer num: 32
I (17) wifi:Init dynamic tx buffer num: 32
I (17) wifi:Init static rx buffer size: 1600
I (18) wifi:Init static rx buffer num: 10
I (18) wifi:Init dynamic rx buffer num: 32
esp_wifi_adapter_init: OK to initialize Wi-Fi adapter
esp32_wlan_sta_initialize: Wi-Fi station MAC: 30:AE:A4:E0:1F:68
netdev_register: Registered MAC: 30:ae:a4:e0:1f:68 as dev: wlan0
esp32_net_initialize: INFO: Initialize Wi-Fi adapter No.0 success
esp32_wlan_sta_initialize: INFO: Initialize Wi-Fi station success net
netdev_ifr_ioctl: cmd: 1794
netdev_ifr_ioctl: cmd: 1796
netdev_ifr_ioctl: cmd: 1800
netdev_ifr_insh> ifconfig
wlan0 Link encap:Ethernet HWaddr 30:ae:a4:e0:1f:68 at UP
inet addr:192.168.86.38 DRaddr:192.168.86.1 Mask:255.255.255.0
nsh> tcpecho
Start echo server
nsh> dmesg
wlan_rxpoll: INFO: Dropped, Unknown type: 0000
wlan_rxpoll: ARP frame
arp_arpin: ARP request for IP 156a8c0
wlan_rxpoll: ARP frame
arp_arpin: ARP request for IP 156a8c0
wlan_rxpoll: ARP frame
arp_arpin: ARP request for IP 156a8c0
wlan_rxpoll: INFO: Dropped, Unknown type: 0000
wlan_rxpoll: ARP frame
arp_arpin: ARP request for IP 2756a8c0
wlan_rxpoll: ARP frame
arp_arpin: ARP request for IP 156a8c0
wlan_rxpoll: ARP frame
arp_arpin: ARP request for IP 156a8c0
wlan_rxpoll: ARP frame
arp_arpin: ARP request for IP 156a8c0
wlan_rxpoll: IPv4 frame
udp_input: WARNING: No listener on UDP port
wlan_rxpoll: INFO: Dropped, Unknown type: 0000
wlan_rxpoll: ARP frame
arp_arpin: ARP request for IP 156a8c0
wlan_rxpoll: ARP frame
arp_arpin: ARP request for IP 156a8c0
wlan_rxpoll: INFO: Dropped, Unknown type: dd86
wlan_rxpoll: IPv4 frame
ipv4_input: WARNING: Not destined for us; not forwardable... Dropping!
wlan_rxpoll: IPv4 frame
ipv4_input: WARNING: Not destined for us; not forwardable... Dropping!
wlan_rxpoll: ARP frame
```
There may just be some config I need to enable. I'm pretty new to networking.
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