PaulS:
The one that comes with the IDE, and a W5100-based Ethernet shield.
Thank you for your answer but on this site they talk about 3 différents libraries
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UIPEthernet is great for projects that require “print” to be fully implemented and need to be a drop-in replacement for the standard “Ethernet” library.
ETHER_28j60 is great for it’s simplicity and small size, but comes with limitations.
Ethercard seems best for very advanced users, but I’m sure UIPEthernet can match it’s capabilities.
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