[CTX] [ALL] UDPrelay

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UDPrelay

DeleGate with a SERVER=udprelay parameter relays communication between a server and clients on UDP without interpreting what is transmitted on it. It has similar merits/demerits to tcprelay for TCP. Also application protocols on which routing information are exchanged, like CU-SeeMe, are not relayable with udprelay.

Example: two proxies on UDP with similar function

# delegated -P53 SERVER=dns://nameserver
# delegated -P53 SERVER=udprelay://nameserver:53

Example: a gateway between UDP and TCP

// UDP clients and a TCP server
# delegated -P53 SERVER=udprelay://nameserver:53 CONNECT=tcp
// TCP clients and a UDP server
# delegated -P53/tcp SERVER=udprelay://nameserver:53


A pair of gateways like above can be used to convey UDP packets over TCP connections, but such relaying (tunneling) is realized more efficiently using SockMux with a single TCP connection.

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