Avaya uses a firewall/VPN product called Secure Gateway 2000 (formerly a VPNet product) on the B2B link. This IPSec, 3DES VPN firewall interoperates with other VPN firewall vendors’ products like Cisco, Nortel, and NetScreen.
The DMZ is firewalled off from the rest of the Avaya network. Additional firewalls and intrusion detection systems are deployed throughout the Avaya network partitioning customer servers from other Avaya users.
Remote laptops and desktops use a VPN client to gain wireless access to the Avaya network. They first must connect to the WEP-protected WLAN, then authenticate on the VPN network, and then on the Avaya LAN network.
Remote technicians first access the Avaya LAN using VPN clients. They then authenticate using SSDP’s Single Sign-On technology. Authentication and data streams are all encrypted over the WAN.