UDP: User Datagram Protocol

https://en.m.wikipedia.org/wiki/User_Datagram_Protocol

Connection API

using UdpConnectionDataDelegate = Delegate<void(UdpConnection &connection, char *data, int size, IpAddress remoteIP, uint16_t remotePort)>
class UdpConnection : public IpConnection
#include <UdpConnection.h>

Subclassed by DnsServer, mDNS::Server, NtpClient

Public Functions

bool setMulticast(IpAddress ip)

Sets the UDP multicast IP.

Note

This method works only when LWIP is compiled with LWIP_MULTICAST_TX_OPTIONS

Parameters

ip

Returns

true – when LWIP supports this operation, false otherwise

bool setMulticastTtl(size_t ttl)

Sets the UDP multicast Time-To-Live(TTL).

Note

This method works only when LWIP is compiled with LWIP_MULTICAST_TX_OPTIONS

Parameters

ttl – - time to live in hops. For example if a milticast UDP packet needs to pass through two routes to reach the receiver then the TTL should be set to 2

Returns

true – when LWIP supports this operation, false otherwise