Introduction 1-1CCCChhhhaaaapppptttteeeerrrr 1111IIIInnnnttttrrrroooodddduuuuccccttttiiiioooonnnnOverviewThe Netopia 4622 T1 Router is a full-featured, stand-alone T1 router for connecting diverse local area networks(LANs) to the Internet and other remote networks. The Netopia 4622 T1 Router uses a high performance T1line to provide your whole network with a high-speed connection to the outside world.This section covers the following topics:■ “Features and Capabilities” on page 1-1■ “How to Use this Guide” on page 1-2Features and CapabilitiesThe Netopia 4622 T1 Router provides the following features:■ Integrated T1 CSU/DSU for fractional or full T1 data service■ Permanent connection to the Internet or remote sites at up to T1 speeds (1.54 Mbps)■ Wire-speed routing (up to 1.54 Mbps) for all packet sizes■ Supports all major T1 deployment models, including ATM, HDLC (Cisco and Copper Mountain), FrameRelay, PPP, and PPP over Frame Relay■ DS0 auto-detection for channelized T1 deployments■ Eight-port 10/100BaseT Ethernet switch connects easily to an existing LAN environment■ The Ethernet switch ports support auto-crossover and half- or full-duplex auto-sensing■ Business-class routing features, such as RIP1, RIP2, static routes, and support for multiple subnets on theLAN■ Network Address Translation (NAT), NAPT, and MultiNAT for flexible use of IP addresses and server hosting■ DHCP client, server, and relay agent for scalable deployment and private IP address management■ Various QoS parameters, including ATM: UBR and CBR; IP: TOS bit prioritization■ High availability solutions via LAN connected back-up default gateway router or dial-back via a modemconnected to the console port■ Built-in firewall, packet filtering on source/destination address, service, and protocol; up to 255 rules in upto 8 filter sets■ IPSec VPN Gateway, supporting DES, 3DES encryption, along with IKE or manual key management■ Built-in VPN acceleration for wire speed performance■ PPTP VPN Gateway, supporting client or server termination