QUERY · ISSUE

Unable to setup IP with nic.ipconfig() while works with obsolete nic.ifconfig() network.WIZNET5K

openby matkoropened 2025-04-15updated 2025-04-20

bug

Port, board and/or hardware

RPi Pico, W5500-EVB-Pico

MicroPython version

MicroPython v1.24.1 on 2024-11-29; W5500-EVB-Pico with RP2040

Reproduction

Run below code with
# nic.ipconfig(addr4="192.168.9.12/24",gw4="192.168.9.3") # No pings reply
nor
# nic.ipconfig(addr4=("192.168.9.12","255.255.255.0"),gw4="192.168.9.3") # No ping reply

import network
import time

nic = network.WIZNET5K()
print (nic)
nic.active(True)
print (f"Activated {nic=}")

# nic.ifconfig(('192.168.9.12', '255.255.255.0', '192.168.9.3', '192.168.9.3')) # Pings OK
nic.ipconfig(addr4="192.168.9.12/24",gw4="192.168.9.3")  # No pings reply
# nic.ipconfig(addr4=("192.168.9.12","255.255.255.0"),gw4="192.168.9.3")  # No ping reply
network.ipconfig(dns="192.168.9.3", prefer=4)

print(f'After static nic config {nic=} {nic.ifconfig()=}')
print(f'After static network config {network.ipconfig("dns")=} {network.ipconfig("prefer")=}')
# In all three cases prints same:
# After static nic config nic=<WIZNET5K> nic.ifconfig()=('192.168.9.12', '255.255.255.0', '192.168.9.3', '192.168.9.3')
# After static network config network.ipconfig("dns")=192.168.9.3 network.ipconfig("prefer")=4

# nic.connect()  AttributeError: 'WIZNET5K' object has no attribute 'connect'
print("Waiting for connection...")
while not nic.isconnected():
    print ("Not connected")
    time.sleep(1)
print ("Connected")
while 1:
    time.sleep(3)
    print (f"{nic.isconnected()=}")

Expected behaviour

Reply to ICMP ping when NIC configured with nic.ipconfig()

Observed behaviour

No reply to ICMP Ping when configured with nic.ipconfig()
But ICMP Ping replies received after init via nic.ifconfig().

Additional Information

No, I've provided everything above.

Code of Conduct

Yes, I agree

CANDIDATE · PULL REQUEST

extmod/network: Implement IPv6 API to set and retrieve nic configuration.

mergedby felixdoerreopened 2024-02-16updated 2024-03-19

extmod

fixes #12600

This change implements a new <AbstractNIC>.ipconfig function for the CYW43 NIC class, to set and retrieve network configuration for a NIC. Currently this change supports:

ipconfig("addr4") obtain a tuple (addr, netmask) of the currently configured ipv4 address
ipconfig("addr6") obtain a list of tuples (addr, state, prefered_lifetime, valid_lifetime) of all currently active ipv6 addresses. This includes static, slaac and link-local addresses
ipconfig(addr4="1.2.3.4/24") to set the ipv4 address and netmask
ipconfig(addr6="2a01::2") to set a static ipv6 address. Note that this does not configure an interface route, as this does not seem supported by lwip
ipconfig(autoconf6=True) to enable ipv6 network configuration with slaac (and wait up to 10s for an address to be received)
ipconfig(gw4="1.2.3.1") to set the ipv4 gatewas
network.ipconfig(dns="2a01::2") set the primary dns server (can be a ipv4 or ipv6 address).
ipconfig(dhcp4=True) enable, and wait for (up to 10s), ipv4 dhcp. This sets ipv4 address, netmask, gateway and a dns server. ipconfig(dhcp4=False) stops dhcp, releases the ip, and clears the configured ipv4 address.
ipconfig(dhcp6=True) enable stateless dhcpv6 to obtain a dns server
netwok.ipconfig(prefer=6) to prefer ipv6 addresses to be returned as dns responses (falling back to ipv4 if the host does not have an ipv6 address). Note that this does not flush the dns cache, so if a host is already in the dns cache with its v4 address, subsequent lookups will return that address even if prefer=6 is set.

This interface replaces network.ifconfig completely, and ifconfig should be marked as deprecated and removed in a future version.