Cisco 677 SOHO/Telecommuter ADSL Router

The Cisco 677 Small Office Home Office (SOHO)/Telecommuter asymmetric digital subscriber line (ADSL) Router is designed to offer cost-effective high-speed services to small home offices and work-at-home users. The Cisco 677 provides a compact design and a low-cost, splitterless, no truck roll solution. It is part of the leading Cisco architecture that provides a path to new world services. The Cisco 677 provides access to high-speed and secure Internet and corporate services through a robust routing, transparent bridging, and PPP/ATM feature set.

Cisco 677 Overview

The Cisco 677 provides a 10/100BaseT interface for connection to a small, home-office LAN or a single Ethernet-equipped PC. The Cisco 677 supports a robust routing feature set for seamless integration of ADSL service into corporate or home LANs and WANs. A built-in Dynamic Host Configuration Protocol (DHCP) server automatically assigns IP addresses to PCs on the LAN, and with Port Address Translation (PAT) these PCs can share a single IP address. In addition, with Cisco EZ-DSL no-truck-roll technology, basic telephone service splitters are not required at the premise, thus reducing the cost of installation.

Features

Physical Interfaces

Rate-adaptive DSL (Discrete Multi-Tone [DMT] Issue 2) interface, with maximum receive data rates up to 8024 Kbps and transmit data rates up to 864 Kbps
Future support for g.lite operation via software download, with a maximum receive data rate up to 1536 Kbps and transmit data rates up to 512 Kbps.
ADSL physical connection supports ATM adaptation layer 5 (AAL5) encapsulation
Support for Fast and Interleaved dual latency
Trellis coding and ATM bit/byte wide alignment
Autonegotiating 10BaseT or 100BaseTX Ethernet interface
Local initialization/configuration through RJ-45 serial port
Status LEDs indicating power/alarm, ADSL connectivity and activity, and Ethernet connectivity and activity
Utilizes Cisco EZ-DSL technology to deliver full Rate Adaptive Digital Subscriber Line (RADSL) rates without truck roll to the premise
Fully compatible with Cisco 6100 and Cisco 6200 series asymmetric digital subscriber line access concentrators (advanced DSLAM)

Routing and Bridging Support

IP routing (PPP over ATM and RFC 1483)
Supports null-encapsulated PPP over AAL5
Port Address Translation (PAT) support for conservation of registered IP addresses
Dynamic Host Configuration Protocol (DHCP) server and client support for dynamic IP address allocation
DHCP relay agent support
Optional support for IP address and subnet mask assignment via IP Control Protocol (IPCP)
Support for multiple IP addresses on the Ethernet interface
Multicast proxy support (IGMP Proxy) for support of video applications
Transparent bridging (RFC 1483) support
Managed bridge support for remote configuration and management

Configuration, Management, and Security

Remote management with Telnet or HTML browser interface
Trivial File Transfer Protocol (TFTP) support for software updates and configuration downloads/uploads
Cisco Commander user-based graphical user interface for connecting and monitoring the DSL link
RADIUS and SYSLOG support for remote status monitoring
Simple Network Management Protocol (SNMP) Management Information Base (MIB) support
PPP user authentication protocol (PAP)
Multilevel password protection

Figure 1: Cisco 677 SOHO/Telecommuter ADSL Router

Options

Basic telephone service splitter---an optional passive splitter provides simultaneous analog voice and high-speed data on a single twisted-pair phone line
EZ-DSL inline and wall-mount microfilters for splitterless installations

Cisco 677 Hardware Specifications

Dimensions	5.0 x 6.2 x 1.75 in.
	(12.7 x 15.7 x 4.5 cm)
Weight	1.5 lb
Power Source	110-240 VAC
LAN Interface	10BaseT/100BaseT Ethernet, half-duplex RJ-45 connector
ADSL Interface	ADSL, DMT encoding:
	ANSI T1.413 Issue 2 (Full rate DMT over analog POTS)
	G.992.1 Annex A (full-rate DMT over analog POTS)
	G.992.2 Annex A (G.lite)
	RJ-11 connector
Data Rate	DMT Full Rate (g.dmt) ADSL Downstream Speed Range: 32 kbps to 8032 Kbps Upstream Speed Range: 32 Kbps to 864 Kbps Increments: 32 Kbps
Data Rate	G.lite ADSL (future) Downstream Speed Range: 32 Kbps to 1536 Kbps Upstream Speed Range: 32 Kbps to 512 Kbps Increments: 32 Kbps
Local Serial Interface	RJ-45
Software Upgrade	Via built-in Flash ROM
Power Requirements	5V DC @ 1.0 Amps
Operating Requirements	Temperature: 32 to 104° F (0 to 40° C)
Operating Requirements	Humidity: 5 to 90% (noncondensing)
Regulatory Approvals and Compliance	FCC Part 15, Subpart B, 1997; CSA Std. C108.8 (1993); VCCI, 1995; AS/NZS 3548: 1995; EN55022: 1994/CISPR 22: 1993; EN50081-1: 1997; CNS 13438; UL 1950 3rd Edition; CSA C22.2. No. 950; VCE per EN60950/IEC950 Amendment 4; CE Marked for Electromagnetic Certifications (EMC) and Safety
LED Indicators	LAN indicator: connection and activity
	ADSL indicator: connection and activity
	Power indicator

Software Specifications

Software Options

G.lite (future)
Full-rate DMT
Single-user
Multi-user

Standards Compliance

ATM Forum UNI Version 3.1 PVC
IEEE 802.3 and 802.3u 10BaseT and 100BaseTX physical layer specification

Routing and Bridging Support

IETF RFC 2364 Point-to-Point Protocol (PPP)
IETF RFC 1483 encapsulation over AAL5
IP (RFC 791)
UDP (RFC 792)
ICMP (RFC 791)
ARP (RFC 826)
RIP version 1 and RIP version 2 updating of routing tables
Static routing
Port Address Translation (PAT)
Dynamic Host Configuration Protocol (DHCP) server and client (RFC 2131, RFC 2132)
DHCP Relay Agent (RFC 1542)
IEEE 802.1d transparent learning bridging

Management

RADIUS security and accounting (RFC 2058, RFC 2059)
HTML browser interface
Command-line interface
Cisco Commander Graphical User Interface (GUI)
Telnet
TFTP
SNMP MIB support (MIB-II, PPP MIB, spanning tree MIB, enterprise MIB)
PAP
Multilevel password protection