watchdog packet

watchdog packet

In a NetWare network, an inquiry packet sent by the server to the client if it has not had any requests from the client for some period of time. If there is no response to the watchdog packets, the server clears the connection. See watchdog timer.
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Spoofing the watchdog packets leads the server to assume these clients are still active and keeps the connection alive.
Phone charges are minimized, because SmartRoute spoofs watchdog packets until the link becomes active with data transfer or a preset time has elapsed.