The NetVanta 4430 is an modular access router designed for higher-bandwidth applications supporting up to eight T1s for Internet access, corporate Frame Relay, point-to-point connectivity, ADSL, VPN, and up to a 100Mbps Carrier Ethernet connection. The NetVanta 4430 includes a built-in firewall and three Ethernet LAN ports, and supports IPSec Virtual Private Networking (VPN) and Voice Quality Monitoring as well.