The NetVanta 4305 is an access router designed for cost-effective Internet access, corporate Frame Relay, point-to-point connectivity, and Virtual Private Networking (VPN) for large-bandwidth applications supporting up to eight T1s worth of performance. Residing in a 1U high, 19" rackmountable metal enclosure, the NetVanta 4305 is a single platform that offers three interface slots and two 10/100Base-T Ethernet LAN ports for true LAN segmentation or DMZ applications. Initially, the NetVanta 4305 will house a variety of Network Interface Modules (NIMs) and includes a Stateful Inspection Firewall, QoS for delay-sensitive traffic like VoIP, NAT and DHCP, and all managed with a familiar Command Line Interface (CLI).

• Three-slot, dual-Ethernet IP access router for Frame Relay, PPP, PPPoE, and Multilink PPP networks
• Dual auto-sensing 10/100Base-T interfaces support LAN segmentation or DMZ applications
• Interchangeable Network Interface Modules (NIMs): 56/64K, T1/FT1, T1/FT1 with DSX-1, Dual T1, E1/FE1, E1/FE1 with G.703, ADSL, Serial, and an Octal T1/E1 Wide Module.
• Based on feature-rich ADTRAN Operating System (OS)
• Standards-based BGP, OSPF, RIP, static routing, and bridging protocols
• Integral stateful inspection firewall protects against Denial of Service (DoS) attacks
• QoS using Low Latency and Weighted Fair Queuing
• DiffServ marking or packet recognition
• Frame Relay Fragmentation to avoid latency
• Optional Voice Quality Monitoring (VQM) for MOS prediction 
• Easily recognizable Command Line Interface (CLI)
• 802.1Q VLAN trunking and inter-VLAN routing
• Network Address Translation (NAT/NAPT) for IP concealment
• NAT-compliant SIP ALG
• DHCP client, server, and relay for IP address assignment
• XAUTH including RADIUS and RSA SecurID for user administration
• Optional IPSec VPN upgrade supporting 1,000 tunnels and DES/3DES/AES encryption
• Compatible with ADTRAN's VPN-equipped NetVanta models and other IPSec-compliant appliances
• 1U, 19-inch rackmount metal enclosure
• 1.75” H, 17.25” W, 11" D
• Auto-ranging power (100-250 VAC, 50/60 Hz, 325 watts)