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. APE Page 579 Friday, January 7, 2000 6:27 PMCisco Access Routers and Servers Overview 579" IPX protocol spoofing Optimizes Novell networking by responding to serverWatchdog requests on behalf of a remote client." Cisco IOS compression solutions Accomplished with header compression forTCP/IP, per-interface compression (one set of dictionaries per hardware link), and per-virtual circuit compression (one set of dictionaries per compressed virtual circuit).SecurityThe powerful suite of Cisco security technologies includes the following:" Network address translation and port address translation (PAT) Hidesprivate topology and IP addresses from an external network." Digital Signature Standard (DSS) and digital certification Positivelyauthenticates users or devices." Data Encryption Standard (DES) Enables 40-/56-bit encryption." Terminal Access Controller Access Control System Plus (TACACS+)Provides complete network access security (NAS) for dial-in connections." Password Authentication Protocol authentication Allows a remote node toestablish its identity using a two-way handshake." Challenge Handshake Authentication Protocol authentication Allows aremote node to establish its identity using a three-way handshake." Calling line identification Uses calling line identification to compare the ISDNnumber of a calling device against a list of known callers." Access lists Checks source address of packets (standard access lists) and checkssource and destination addresses and other parameters (extended access lists)." Lock and Key Allows per-user authorization in a shared-media environment.Multimedia FeaturesCisco IOS network services that support multimedia applications with multimedia andmulticast capabilities include these:" Resource Reservation Protocol Dynamically reserves end-to-end bandwidth fordelay-sensitive IP traffic." IP Multicast-Protocol Independent Multicast (PIM) Serves as a multicastprotocol that can be used in conjunction with all unicast IP routing protocols. APE Page 580 Friday, January 7, 2000 6:27 PM580 Appendix E: Cisco Small and Medium Business Solution Guide" Internet Group Management Protocol Indicates to the router whether anyhosts on a given physical network belong to a multicast group." AppleTalk Simple Multicast Routing Protocol (SMRP) Providesconnectionless, best-effort delivery of multicast datagrams.Quality of ServiceCisco IOS Quality of Service network services readily support bandwidth-intensive traffic:" Resource Reservation Protocol Establishes priority bandwidth allocation." Weighted Fair Queuing (WFQ) Adds new levels of control to previous queuingmethods." Random Early Detection (RED) Monitors traffic levels on very large networksto prevent congestion and to guarantee priority traffic delivery." Cisco IOS technologies that manage resource allocation Includes PIM,Private Network-Network Interface (PNNI), and available bit rate (ABR).Ease of Use and ManagementCisco IOS management services are designed to meet the needs of today s distributed networks:" Management services Support for AutoInstall, SNMP, Telnet, RMON,Management Information Bases (MIBs), and HTTP server interface." Fast Step for Cisco 700 series routers A new Windows 95- or NT 4.0-basedconfiguration and monitoring tool targeted at small office and home office users." Cisco ConfigMaker The new Windows 95 or NT 4.0 graphical tool enabling areseller or network administrator to configure Cisco 1000, 1600, 2500, and 3600 seriesrouters and to design networks for LAN-to-LAN and user-to-LAN internetworkingsolutions." Cisco ClickStart The Web-based software solution embedded in Cisco IOSsoftware that enables users to install Cisco 700, 1000, or 1600 series routers in minutes." Cisco ISDN Support Service A single point of contact to assist users with settingup an ISDN connection to Cisco 700, 1003, 1004, 1600, 2503, 2524, 2525, 3600, and4000 series routers and Cisco AS5x00 series access servers. APE Page 581 Friday, January 7, 2000 6:27 PMCisco Access Routers and Servers Overview 581Cisco Access Router and Access Server SummarizationTables E-1, E-2, and E-3 summarize the uses and specifications of the various routers andaccess servers covered in this section
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