← index #12767Issue #11925
Off-topic · high · value 0.535
QUERY · ISSUE

micropython doesn't reply to ARP requests

openby yshuiopened 2023-10-22updated 2025-05-06
bug

firmware info: MicroPython 856e08b1931b88271816a2f60648f6ff332235b2, inky_frame v1.20.3 on 2023-06-19; Raspberry Pi Pico W with RP2040

I am having problem with making http requests from pico, tcpdump on my router shows the board is not replying to ARP requests:

06:49:18.250980 IP 192.168.1.241.38952 > 1.1.1.1.53: 50883+ A? pool.ntp.org. (30)
06:49:18.279499 IP 1.1.1.1.53 > 192.168.1.241.38952: 50883 4/0/0 A 213.5.132.231, A 139.143.5.30, A 85.199.214.101, A 85.199.214.102 (94)
06:49:18.287255 IP 192.168.1.241.51056 > 213.5.132.231.123: NTPv3, Client, length 48
06:49:18.335666 IP 213.5.132.231.123 > 192.168.1.241.51056: NTPv3, Server, length 48
06:49:23.192697 ARP, Request who-has 192.168.1.241 tell 192.168.1.1, length 28
06:49:24.232697 ARP, Request who-has 192.168.1.241 tell 192.168.1.1, length 28
06:49:25.272813 ARP, Request who-has 192.168.1.241 tell 192.168.1.1, length 28
CANDIDATE · ISSUE

No access to web server on the Raspberry Pi Pico W from external networks

closedby CHPeteropened 2023-07-03updated 2024-08-24
bug

Hello
WEB server Raspberry Pi Pico W is ideally accessible from a local network and does not respond to a request from an external network - for example http://217.65.242.xx: 34911.
Port 34911 on the router translates to port 80.
If I register port 80 in Firewall NAT instead of port 34911, everything works.
Please help me.
I use:
MicroPython v1.20.0 2023-04-26
Last firmware from https://rpf.io/pico-w-firmware.

Thank you.
Peter.

pico_w_network.docx

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