System Security of SMS Gateway

In the design of hardware and software structure, SMS gateway should adopt distributed and modular equipment, in which the hardware equipment can adopt multiple hosts, and the load on the network can be shared through four-layer switches to avoid a single point of failure and realize the safety of the equipment.

At the same time, SMS gateway adopts firewall technology, which can support IP packet filtering and application proxy to prevent external attacks and realize information security.

When establishing CMPP protocol connection between SMS gateway and SP, MD5 is used to authenticate each other's identities to realize business security.

The connection between SMS gateway, SMS center and billing center adopts a dedicated line, and the connection with billing center also needs to add a firewall at the billing center side to ensure that the security of existing network equipment will not be reduced due to the connection with SMS gateway.

With the development of technology in the future, IPVPN technology can be considered between SMS gateways and between SMS gateways and SP to isolate the whole system from the Internet and improve the security of the system more effectively.