Using DNS for security system event reporting

摘要

A method of transmitting a message from a security system to a central station receiver includes receiving at the security system an IP address associated with the central station receiver. An attempt is made to transmit the message from the security system to the central station receiver by use of the IP address. In response to a failure to receive at the security system an acknowledgement from the central station receiver that the message was received, the security system is used to query a Domain Name Server for a current IP address associated with the central station receiver. The query is dependent upon a domain name of the central station receiver. The current IP address associated with the central station receiver is received and used to re-attempt the transmitting of the message from the security system to the central station receiver.

主权项

1. A method of transmitting a message from a security system to a central station receiver, the method comprising:
receiving, at the security system, a static IP address associated with the central station receiver; attempting to transmit the message from the security system to the central station receiver by use of the static IP address; detecting, at the security system, a failure to receive an acknowledgement from the central station receiver that the message was received; in response to the failure to receive the acknowledgement, using the security system to send a request to a Domain Name Server for a current IP address associated with the central station receiver, the request being dependent upon a domain name of the central station receiver; receiving the current IP address associated with the central station receiver; determining, at the security system, that the central station receiver is associated with the current IP address based on receiving the current IP address from the Domain Name Server; determining whether the current IP address is different than the static IP address; and when the current IP address is different than the static IP address, storing the current IP address in the security system as an updated static IP address and using the updated static IP address to re-attempt the transmitting of the message from the security system to the central station receiver.