The Ethernet2 (and Ethernet) library supports reading the following parameters from the W5500 board:

• localIP
• subnetMask
• gatewayIP
• dnsServerIP

Curiously the two other parameters are missing:

• MacAddr
• dhcpServerIP

For maintenance purpose the two missing calls should be added. The W5500 driver already supports these calls, so it is very simple to do:

For the new Arduino Ethernet Shield V2 R1.0.3 ==>

Add to Ethernet2.h =>
IPAddress dhcpServerIP();
void MacAddr(uint8_t * Mac);

and to Ethernet2.cpp =>
IPAddress EthernetClass::dhcpServerIP()
{
return _dhcp->getDhcpServerIp();
}
void EthernetClass::MacAddr(uint8_t * Mac)
{
w5500.getMACAddress(Mac);
}