Cisco 804 Bedienungsanleitung PDF herunterladen (Seite 2)

2 Cisco Product Catalog, April, 2001

Cisco 805 offers one serial port for synchronous serial connections or asynchronous dial up connections with an external

modem. For IDSL connections, the Cisco 802 IDSL provides one IDSL port with one Ethernet port and the Cisco 804 IDSL

adds an integrated 4-port Ethernet hub.

The Cisco 803 and 804 models also support supplementary telephone services such as call waiting, call-waiting cancel, call

hold, call retrieve, three-way conferencing, and call transfer (if these services are supported by a users telephone company).

For North American users, the Cisco 804 supports caller ID out the POTS port. Field upgradable Flash and DRAM memory

in all Cisco 800 Series models protect equipment investments as technologies and networking requirements change.

• Support for WAN Technologies

The Cisco Series 801 through 804 supports ISDN switched, leased line connections, Always on Dynamic ISDN (AODI),

X.25 over ISDN D channel, Bandwidth Allocation Control Protocol (BACP), Multilink Point-to-Point Protocol (ML-

PPP), Compression Control Protocol (CCP) compression (up to 4:1), and Bandwidth on Demand (BOD) with load

balancing for links up to 128 kbps, for effective throughput up to 512 kbps.

The Cisco Series 802 IDSL and 804 IDSL also supports IDSL which offers high-speed digital connections over an ISDN

infrastructure and supports line rates up to 144 kbps. IDSL dramatically expands the reach of DSL connectivity for those

customers who are outside the Service Provider’s range for DSL or for those who are unable to qualify for DSL

connections. IDSL supports VPN connections for telecommuting and branch ofﬁces as well as small businesses who need

fast, reliable Internet access.

The Cisco 805 supports both synchronous serial connections and asynchronous dial connections, synchronous

connections include Frame Relay, leased line, X.25 up to speeds of up to 512 kbps. When using asynchronous dialup with

an external modem, the Cisco 805 only connects to the Internet when required, and then immediately disconnects when

the line is no longer being used, minimizing per-minute usage charges. Access control lists make sure that only important

trafﬁc initiates the Internet connection, further increasing the cost savings. The advanced routing protocols of the

Cisco 805, including Snapshot and triggered RIP, ensure routing table information is exchanged efﬁciently; and STAC

compression increases total throughput. Asynchronous serial speeds up to 115.2 kbps.

• Integrated CAPI Support for for European Markets

The Cisco 801-1RCAPI and Cisco 803-1RCAPI series models are designed to take full advantage of popular European

ISDN services. Integrated support for common application programming interface (CAPI) applications provides access

to services such as faxing and online banking and a range of leading Internet service providers.

Cisco 800 series Internet access devices are available with one-user or ﬁve-user RVS-COM Lite licenses, for access to

all RVS-COM applications and CAPI applications. And since the CAPI 2.0 driver is built into the Cisco 800 series, there

is no need to purchase separate software for your server.

CAPI is an application programming interface standard used to access ISDN equipment connected to basic rate interfaces

(BRIs) and primary rate interfaces (PRIs). Using a Cisco 800 series with RVS-COM Lite software provides a truly shared

network environment and other beneﬁts including: Soft fax (for analog and digital lines) for use with software such as

AVMs Fritz!32, Symantec WinFax Pro, and RVS-COM Lite 1.6: Soft modem for e-mail and Web access to Internet

service providers such as T-Online and CompuServe File and Euro-File Transfer Electronic banking and shopping with

German T-Online Third-party CAPI-compliant applications. For further details on the CAPI standard, visit this URL:

http://www.capi.org.

• Security

To leverage the unprecedented opportunities offered by communications and commerce over the Internet, private

information must remain secure. Cisco Secure Integrated Software provides many technologies to build a custom security

solution. The elements of security services include perimeter security, identity, monitoring, privacy, ﬁrewalls, IPSec

encryption, and VPNs.

—Standard Security

Perimeter security refers to the control of trafﬁc entry and exit between network boundaries, such as between private

networks, intranets, extranets, or the Internet. Cisco IOS perimeter security technologies provide a highly ﬂexible,

superior solution with features such as:

Standard and extended ACLs

Lock and Key (dynamic ACLs)

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