To ensure the Messaging system is secure, it is recommended that the customer harden, or secure, devices in the communication system’s network at Layer 2, the data link layer, and Layer 3, the network layer, as defined by the Open Systems Interconnect (OSI) 7-layer network model. Messaging offers logging capabilities, which the customer can use to detect actual and potential security breaches. Additional host intrusion and network intrusion detection systems can also be added to the customer’s network to detect security breaches at Layers 2 and 3.
The customer can also use a number of security features in other devices in the network to harden Layers 2 and 3 of the network. These devices include the G250-series, G350 Media Gateways, G430/G450 Media gateways, the IG550 Integrated Gateway, and third-party Ethernet switches and routers that provide LAN/WAN connectivity.
Note G450/G430 Media gateways do not support 802.1X and LLDP feature.