WiFi.localIP() returns 255.255.255.255 after connect #4732

SvenArke · 2021-01-18T13:58:02Z

Hardware:

Board: ESP32-WROOM-32
Core Installation version: 1.0.4 & 1.0.5 rc6
IDE name: Arduino 1.8.13

Description:

With 1.0.6 - any version i get always 255.255.255.255 as IP address from WiFi.localIP()

Code:
log_i("Connected to: ");
log_i( "%s", WiFi.SSID() );
log_i( "%s", WiFi.localIP().toString().c_str() );

Core 1.0.4 returns:
[I][Test-2020.ino:85] setup(): Connected to:
[I][Test-2020.ino:86] setup(): NET1
[I][Test-2020.ino:87] setup(): 192.168.0.169

Core 1.0.5 rc1 to rc6 returns:
[I][Test-2020.ino:85] setup(): Connected to:
[I][Test-2020.ino:86] setup(): NET1
[I][Test-2020.ino:87] setup(): 255.255.255.255

Tested all rc versions - no luck. Code runs only on 1.04 flawless. Any suggestions ?

Thank you !

SvenArke · 2021-01-20T22:09:26Z

Found the problem !
Sketch contained a bugfix for "hostname not sent via dhcp" - >#2537

WiFi.config(INADDR_NONE, INADDR_NONE, INADDR_NONE);

This kills WiFi.localIP() on Core 1.0.5 rc6 ...

me-no-dev · 2021-02-03T09:48:13Z

done :) thanks for finding this

When using this workaround, WiFi.localIP() returns 255.255.255.255 after a successful wifi connect and the signal k server can't be found with mdns. I tested that for the ESP8266 v2 with platform version Espressif 8266 v2.6.3 see here: espressif/arduino-esp32#4732

hutje · 2021-12-13T17:32:14Z

When will the be fixed?

gerab · 2021-12-21T00:32:12Z

wow, surprisingly it's still there!

thomastech · 2021-12-23T17:43:33Z

Yes, I ran into this bug too. As mention before, no problem if I remove the bugfix for "hostname not sent via dhcp" - >#2537. Is that the final/only solution? Hoping for some words of wisdom from the devs.

VojtechBartoska · 2022-01-04T11:04:28Z

@me-no-dev Can you please test this again?

YordanYanakiev · 2022-04-15T13:10:59Z

Same issue here in all around the projects. :'(

VojtechBartoska · 2022-04-20T07:08:54Z

@YordanYanakiev tested on v2.0.3-rc1?

YordanYanakiev · 2022-04-20T07:12:19Z

yes, also the previous ones downto 2.0.0

SuGlider · 2022-04-21T23:54:29Z

This issue is linked to #6610

SuGlider · 2022-04-21T23:58:43Z

The main issue is that <lwip/inet.h> declares #define INADDR_NONE IPADDR_NONE and it includes <lwip/ip4_addr.h> that declares #define IPADDR_NONE ((u32_t)0xffffffffUL) (IP 255.255.255.255)

When <lwip/inet.h> is included, it makes the Arduino declaration of "IPAddress INADDR_NONE(0,0,0,0)" invalid.

This process occurs in all the WiFi/ETH Arduino Libraries.

SuGlider · 2022-04-29T02:41:48Z

This is the test case used to verify/test this issue and PR Fix:

#include <Arduino.h>
#include <WiFi.h>

void setup() {
  WiFi.begin("Your_SSID", "Your_wifi_password");
  String nodeName = "NODE-" + WiFi.macAddress();
  nodeName.replace(":", "");
  char _nodeName[20]; nodeName.toCharArray(_nodeName, 20);
  WiFi.setHostname(_nodeName);
  WiFi.config(INADDR_NONE, INADDR_NONE, INADDR_NONE);
  WiFi.mode(WIFI_STA);

  log_i("Connected to: ");
  log_i( "%s", WiFi.SSID() );
  log_i( "%s", WiFi.localIP().toString().c_str() );
  log_i( "%s", WiFi.getHostname());
}

void loop() {
}

Description of Change Fixes IPAddress INADDR_NONE declaration when using Arduino WiFi or ETH. This symbol was defined as 0xffffffff by lwip /inet.h, making it impossible to use INADDR_NONE correctly. This PR only works when <wifi-provisioning/wifi_config.h> has a modification to include <lwip/ip4_addr.h> instead of <lwip/inet.h>. This will be done directly to the sdk folder in the github structure and it has been fixed in IDF by a separated Merge Request. This will be reflected in the future, for good. Tests scenarios This PR was tested with all Arduino WiFi examples, including AsyncUDP. Also with ETH examples. It was also tested for #6610 test cases. Testing done for ESP32, ESP32-S2, ESP32-C3 and ESP32-S3. Related links fixes #6610 fixes #6247 fixes #4732

Description of Change Fixes IPAddress INADDR_NONE declaration when using Arduino WiFi or ETH. This symbol was defined as 0xffffffff by lwip /inet.h, making it impossible to use INADDR_NONE correctly. This PR only works when <wifi-provisioning/wifi_config.h> has a modification to include <lwip/ip4_addr.h> instead of <lwip/inet.h>. This will be done directly to the sdk folder in the github structure and it has been fixed in IDF by a separated Merge Request. This will be reflected in the future, for good. Tests scenarios This PR was tested with all Arduino WiFi examples, including AsyncUDP. Also with ETH examples. It was also tested for espressif#6610 test cases. Testing done for ESP32, ESP32-S2, ESP32-C3 and ESP32-S3. Related links fixes espressif#6610 fixes espressif#6247 fixes espressif#4732 Co-authored-by: Rodrigo Garcia <rodrigo.garcia@espressif.com>

rysiulg · 2022-05-04T19:49:00Z

In This arduino libraries bugs and workaround for hostname on esp32 ...
any version i get always 255.255.255.255 as IP address from WiFi.localIP()

use:
WiFi.config(((u32_t)0x0UL),((u32_t)0x0UL),((u32_t)0x0UL));
or
#ifdef INADDR_NONE
#undef INADDR_NONE
#define INADDR_NONE ((u32_t)0x0UL)
#endif
WiFi.config(INADDR_NONE ,INADDR_NONE ,INADDR_NONE );

to get config definitions of ip 0.0.0.0 and be able to obtain dhcp values.
By default arduino resolves definitions INADDR_NONE -> IPADDR_NONE -> ((u32_t)0xffffffff0UL) which gives 255.255.255.255 ip and dhcp resolution doesn't work.

best regards

Hardware:

Board: ESP32-WROOM-32 Core Installation version: 1.0.4 & 1.0.5 rc6 IDE name: Arduino 1.8.13

Description:

With 1.0.6 - any version i get always 255.255.255.255 as IP address from WiFi.localIP()

Code: log_i("Connected to: "); log_i( "%s", WiFi.SSID() ); log_i( "%s", WiFi.localIP().toString().c_str() );

Core 1.0.4 returns: [I][Test-2020.ino:85] setup(): Connected to: [I][Test-2020.ino:86] setup(): NET1 [I][Test-2020.ino:87] setup(): 192.168.0.169

Core 1.0.5 rc1 to rc6 returns: [I][Test-2020.ino:85] setup(): Connected to: [I][Test-2020.ino:86] setup(): NET1 [I][Test-2020.ino:87] setup(): 255.255.255.255

Tested all rc versions - no luck. Code runs only on 1.04 flawless. Any suggestions ?

Thank you !

SuGlider · 2022-05-04T21:41:00Z

In This arduino libraries bugs and workaround for hostname on esp32 ... any version i get always 255.255.255.255 as IP address from WiFi.localIP()

use: WiFi.config(((u32_t)0x0UL),((u32_t)0x0UL),((u32_t)0x0UL)); or #ifdef INADDR_NONE #undef INADDR_NONE #define INADDR_NONE ((u32_t)0x0UL) #endif WiFi.config(INADDR_NONE ,INADDR_NONE ,INADDR_NONE );

to get config definitions of ip 0.0.0.0 and be able to obtain dhcp values. By default arduino resolves definitions INADDR_NONE -> IPADDR_NONE -> ((u32_t)0xffffffff0UL) which gives 255.255.255.255 ip and dhcp resolution doesn't work.

best regards

Hardware:

Board: ESP32-WROOM-32 Core Installation version: 1.0.4 & 1.0.5 rc6 IDE name: Arduino 1.8.13

Description:

With 1.0.6 - any version i get always 255.255.255.255 as IP address from WiFi.localIP()
Code: log_i("Connected to: "); log_i( "%s", WiFi.SSID() ); log_i( "%s", WiFi.localIP().toString().c_str() );
Core 1.0.4 returns: [I][Test-2020.ino:85] setup(): Connected to: [I][Test-2020.ino:86] setup(): NET1 [I][Test-2020.ino:87] setup(): 192.168.0.169
Core 1.0.5 rc1 to rc6 returns: [I][Test-2020.ino:85] setup(): Connected to: [I][Test-2020.ino:86] setup(): NET1 [I][Test-2020.ino:87] setup(): 255.255.255.255
Tested all rc versions - no luck. Code runs only on 1.04 flawless. Any suggestions ?
Thank you !

@rysiulg - The PR #6659 works for Arduino Core 2.0.3 onward.
In your post you say it doesn't work for Arduino 1.0.4 and 1.0.5, right?
In that case I suggest not using INADDR_NONE within these core versions, as you said.

INADDR_NONE can be replaced by IPAddress(0,0,0,0) or (u32_t)0UL as you wrote.

* Tasmota changes * Fixes INADDR_NONE (espressif#6659) (#136) Description of Change Fixes IPAddress INADDR_NONE declaration when using Arduino WiFi or ETH. This symbol was defined as 0xffffffff by lwip /inet.h, making it impossible to use INADDR_NONE correctly. This PR only works when <wifi-provisioning/wifi_config.h> has a modification to include <lwip/ip4_addr.h> instead of <lwip/inet.h>. This will be done directly to the sdk folder in the github structure and it has been fixed in IDF by a separated Merge Request. This will be reflected in the future, for good. Tests scenarios This PR was tested with all Arduino WiFi examples, including AsyncUDP. Also with ETH examples. It was also tested for espressif#6610 test cases. Testing done for ESP32, ESP32-S2, ESP32-C3 and ESP32-S3. Related links fixes espressif#6610 fixes espressif#6247 fixes espressif#4732 Co-authored-by: Rodrigo Garcia <rodrigo.garcia@espressif.com> * Update README.md Co-authored-by: Rodrigo Garcia <rodrigo.garcia@espressif.com>

me-no-dev closed this as completed in 5de03a3 Feb 3, 2021

frewie mentioned this issue May 5, 2021

WiFi.localIP() returns broadcast address 255.255.255.255 when using workaround SignalK/SensESP#417

Merged

MarcEngrie mentioned this issue Aug 10, 2021

Getting 255.255.255.255 as IP address Juerd/ESP-WiFiSettings#22

Closed

VojtechBartoska reopened this Jan 4, 2022

VojtechBartoska assigned me-no-dev Jan 4, 2022

VojtechBartoska added the Status: Test needed Issue needs testing label Jan 4, 2022

dJPoida mentioned this issue Mar 28, 2022

Device Hostname not broadcasting to network devices dJPoida/garage_bot#1

Open

VojtechBartoska added this to Arduino ESP32 Core Project Roadmap Apr 6, 2022

VojtechBartoska moved this to Todo in Arduino ESP32 Core Project Roadmap Apr 6, 2022

VojtechBartoska added the Area: BT&Wifi BT & Wifi related issues label Apr 20, 2022

SuGlider self-assigned this Apr 21, 2022

SuGlider added Status: In Progress Issue is in progress and removed Status: Test needed Issue needs testing labels Apr 22, 2022

me-no-dev removed their assignment Apr 27, 2022

VojtechBartoska removed the status in Arduino ESP32 Core Project Roadmap Apr 28, 2022

VojtechBartoska moved this to Under investigation in Arduino ESP32 Core Project Roadmap Apr 28, 2022

SuGlider mentioned this issue Apr 29, 2022

Fixes INADDR_NONE #6659

Merged

SuGlider mentioned this issue Apr 29, 2022

INADDR_NONE leads to compilation error in Arduino #6610

Closed

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me-no-dev closed this as completed in #6659 Apr 29, 2022

Repository owner moved this from Under investigation to Done in Arduino ESP32 Core Project Roadmap Apr 29, 2022

VojtechBartoska added Status: Solved and removed Status: In Progress Issue is in progress labels Apr 29, 2022

Jason2866 mentioned this issue Apr 29, 2022

Fixes INADDR_NONE (#6659) tasmota/arduino-esp32#136

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WiFi.localIP() returns 255.255.255.255 after connect #4732

WiFi.localIP() returns 255.255.255.255 after connect #4732

SvenArke commented Jan 18, 2021

SvenArke commented Jan 20, 2021

me-no-dev commented Feb 3, 2021

hutje commented Dec 13, 2021

gerab commented Dec 21, 2021

thomastech commented Dec 23, 2021

VojtechBartoska commented Jan 4, 2022

YordanYanakiev commented Apr 15, 2022

VojtechBartoska commented Apr 20, 2022

YordanYanakiev commented Apr 20, 2022

SuGlider commented Apr 21, 2022

SuGlider commented Apr 21, 2022

SuGlider commented Apr 29, 2022

rysiulg commented May 4, 2022

Hardware:

Description:

SuGlider commented May 4, 2022

Hardware:

Description:

WiFi.localIP() returns 255.255.255.255 after connect #4732

WiFi.localIP() returns 255.255.255.255 after connect #4732

Comments

SvenArke commented Jan 18, 2021

Hardware:

Description:

SvenArke commented Jan 20, 2021

me-no-dev commented Feb 3, 2021

hutje commented Dec 13, 2021

gerab commented Dec 21, 2021

thomastech commented Dec 23, 2021

VojtechBartoska commented Jan 4, 2022

YordanYanakiev commented Apr 15, 2022

VojtechBartoska commented Apr 20, 2022

YordanYanakiev commented Apr 20, 2022

SuGlider commented Apr 21, 2022

SuGlider commented Apr 21, 2022

SuGlider commented Apr 29, 2022

rysiulg commented May 4, 2022

Hardware:

Description:

SuGlider commented May 4, 2022

Hardware:

Description: