Total Access 600R T1 ATM - Access router with built-in T1/FT1 interface and 10/100 BaseT Ethernet port Includes integrated T1 CSU/DSU TDM or ATM configurable depending on software load IP routing 802.1d Bridging (all protocols) NAT/NAPT Packet filtering DHCP server RIP V1 V2 and static routes PPP and Frame Relay support SNMP and Telnet.