Table of Contents
The Cisco 675
This chapter provides an overview of the Cisco 675 product. It also describes the general applications available with the Cisco 675.
Note This chapter documents general product features available in the Cisco 675 product line. Please refer to the Cisco 675 release notes document for a current list of product features available in the Cisco 675 you purchased.
The Cisco 675 is an Asymmetric Digital Subscriber Line (ADSL) modem for home connectivity to an ADSL service provider network over an ADSL/Asynchronous Transfer Mode (ATM) physical layer. The Cisco 675 receives adaptive rates up to 7 Mbps downstream and transmits 1 Mbps upstream. A 10/100Base-T interface is provided for connection to a Ethernet LAN or Ethernet-equipped PC. The Cisco 675 supports Cisco QuickDial technology for ADSL bandwidth-on-demand.
The following figure illustrates the Cisco 675 Customer Premise Router.
Figure 1-1: Front View of the Cisco 675 Unit

The following features are common to all of the Cisco 675 products:
- Carrierless Amplitude Modulation and Phase (CAP)-based ADSL physical layer
- Rate Adaptive DSL (CAP encoding) interface, with maximum receive data rates up to 7 Mbps and transmit data rates up to 1 Mbps for the Cisco 675
- Near-symmetric data rates support up to 1 Mbps bandwidth upstream and downstream on the ADSL interface
- Auto-negotiating 10Base-T or 100Base-TX Ethernet interface, compliant with IEEE 802.3 and 802.3u Fast Ethernet
- ATM cell delineation adherent to ITU-T I.432
- Supports ATM Forum-compliant permanent virtual circuits (PVCs)
- Status LEDs indicating Ethernet and ADSL activity
- Fully compatible with the Cisco 6100 Advanced Digital Subscriber Line Access Multiplexer (ADSLAM) ATM multiplexer
Standards Compliance
- IETF RFC 1661 Point-to-Point Protocol (PPP)
- IETF RFC 1483 encapsulation AAL5
- ATM Forum UNI Version 3.1 PVC
- IEEE 802.3 and 802.3u 10Base-T and 100Base-TX physical layer specification
- IEEE 802.1d transparent learning bridging
- RFC 1638 - BCP
Routing Support
- 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
- RADIUS security and accounting (RFC 2058, RFC 2059)
- DHCP Client and Server
- NAT
Bridging Support
- Transparent learning bridge
- RFC 1483
- PPP (Bridge Control Protocol)
- Management channel support for remote configuration/management
Management
- HTML browser interface
- Command-line interface
- Telnet support
- TFTP
- SNMP MIB support
- Multi-level password protection
The following table describes the function of the connectors and switches on the Cisco 675 back panel. See Figure 1-2 for the location of the connectors described in the following table.
Table 1-1: Function of Connectors
| Connector Label
| Connector Description
|
PWR
| Power Connector
|
ENET
| RJ-45 Ethernet Connector. Connects to the Ethernet port on your PC, laptop or LAN hub.
|
MGMT
| RJ-45 Management Connector. Connects to the serial port on your PC or laptop.
|
WALL
| RJ-11 ADSL Connector. Connects to the wall jack.
|
Figure 1-2: Rear View of Cisco 675

The Cisco 675 comes with 4MB of Extended Data Out (EDO) DRAM with 60 ns access time.
The Cisco 675 Bridge/Router device can be operated in an ambient temperature of 32º to 104ºF (0º to 40ºC) and can be stored in an ambient temperature of -40ºto 185ºF (-40ºto 85ºC).
The general applications supported by the Cisco 675 are:
- DHCP Client and Server
- NAT
- Ping
- RADIUS
- RIP
- SYSLOG Client
- Telnet Server
- TFTP Server
- Traceroute
- Web
For more information on each of these applications, see "Configure Applications" section.







Posted: Thu May 27 12:37:43 PDT 1999
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