Set the IP address of the network gateway. Not for use with DHCP.
Ethernet.setGatewayIP(gateway)
Nothing
#include <SPI.h>
#include <Ethernet.h>
byte mac[] = {0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED};
IPAddress ip(10, 0, 0, 177);
IPAddress myDns(192, 168, 1, 1);
IPAddress gateway(192, 168, 1, 1);
void setup() {
Ethernet.begin(mac, ip, myDns, gateway);
IPAddress newGateway(192, 168, 100, 1);
Ethernet.setGatewayIP(newGateway); // change the gateway IP address
}
void loop () {}