LwipIntfDev - config static IP auto gw,mask,dns as in Arduino libraries

[JAndrassy]

so one more, This one is for 'modern' Ethernet libraries W5100lwIP, W5500lwIP and ENC28J60lwIP used without EthernetCompat.
I wrote a test for what I consider a modern Ethernet library (one with config for static IP as in WiFi libraries) and to my surprise these libraries matched my idea. Only the automatic dns, gw, subnet values were not supported here again.

So here is the third PR for auto gw,mask,dns as in Arduino libraries. First was in 'begin' for EthernetCompat, second was config with two parameters in WiFiSTA.
I had to move the clearing of localIP to EthernetCompat.end, because in library with config, disconnect/end should not clear static IP settings. (config(INADDR_NONE) should))

[d-a-v]

Thanks for checking and keeping compatibility of the network API across every arduino implementations.

to my surprise these libraries matched my idea.

(what were you thinking ?)

I had to move the clearing of localIP to EthernetCompat.end, because in library with config, disconnect/end should not clear static IP settings. (config(INADDR_NONE) should))

Can you recall where these two requirements are stated (one should not, the other should) ?
Even if you're not arduino official, a link from our documentation to your NetApiHelpers might help anyway.

[JAndrassy]

Can you recall where these two requirements are stated (one should not, the other should) ?

It is related to my PR which was then reverted because I found out that all libraries have it as exp8266 WiFi.
relevant comment #9020 (comment)

a link from our documentation to your NetApiHelpers might help anyway

in what context?

(what were you thinking ?)

the surprise is even bigger. there are already 4 libraries which are 'modern Ethernet`: in esp8266 core , in Earle's RP2040 core, in ESP32 and even Arduino's Mbed Core Ethernet (with problems at runtime)

[d-a-v]

Thanks
Given @mcspr's suggestion in the 9020 comment, we'll update the documentation ourselves.