![]() The choice of whether to randomize the port number on a per-association or a per-request basis is left to the implementation. A client process will request TCP to create a connection to the server process at the servers well-known port number, and usually using the reserved port 0 so that TCP will assign the client process an ephemeral port number for that connection. Section 4 recommends that NTP implementations randomize the ephemeral port number of client/server associations. Port 162 (SNMPTrap)Simple Network Management Protocol trap port (An SNMP agent typically uses 161 while an SNMP manager typically uses 162). The description contains additional information about the connectivity requirement. A server process usually listens on a well-known port number, e.g. Some systems use this range for their ephemeral ports, so services which bind a port without requesting a specific number are often allocated 49152 if they are the first program to do so. Inbound requests are received from the client from its transmission port. The destination device is the server which is listening for “inbound” requests to the application port. Genesys Cloud typically uses the standard port for each application protocol. Most applications’ protocols have standard ports selected, which are commonly used for that service on the public internet. Most applications use either TCP or UDP as a transport, and sometimes both, which depends on how the application operates. The transport protocol is a description of the type of network traffic used for the application. The service is a description of the application protocol or service type being used in the transmission. Within the source/client articles, you’ll find tables that provide configuration information under the following headings: In typical TCP network communication, the client selects a unique ephemeral port in which transmitted traffic originates. From this device, all connections are considered outbound. ![]() The source device is the client which initiates the network communication. In each section, you’ll find links to articles that provide information on the ports and services that you need to configure for a specific source/client. On the About ports and services for your firewall page, you’ll find sections for each of the Genesys Cloud telephony connection options as well as sections that apply to all of the telephony connection options. Ports and services for your firewall overview
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