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CHAPTER 1
Overview of Cisco 700
Series Routers
Cisco 700 series routers connect Ethernet LANs to other networks over Integrated Services
Digital Network (ISDN) Basic Rate Interface (BRI) lines. Cisco 700 series routers offer
multiprotocol routing capability between WAN and LAN ports and can function as
transparent bridges.
This chapter contains the following sections:
• Product Features
• Security Features
• SNMP Support
• Supported MIBs
• Supported RFCs
• Router Panels
• Specifications
For more
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Product Features Product Features This section describes the major features of Cisco 700 series routers. Dial-On-Demand Routing Cisco 700 series routers include dial-on-demand routing (DDR). This allows the router to dynamically initiate calls to remote devices across ISDN BRI lines as traffic demands. The router also terminates ISDN connections based on the level of the traffic demanded on the ISDN line and the dynamic routing parameters. SPID and Switch Automatic Detection The automatic service
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Product Features Profile-Based User Name and Password Remote users often have multiple service providers. Connecting to different service providers might require different user names and passwords. Previous releases of Cisco 700 software used the same user name and password for all profiles when making outgoing Point-to-Point Protocol (PPP) connections. Cisco 700 series router software Release 4.1(1) allows different profiles to have different user names and passwords. In previous releases, the set
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Product Features NetBIOS Over TCP/IP Packet Filter A generic filter capability on the Transaction Control Protocol/User Datagram Protocol (TCP/UDP) packets allows users to filter NetBIOS packets generated by application programs. Use the set ip filter command to control this feature. NetBIOS Name Spoofing When a WINS client sends out a NetBIOS Name query, the router can answer a NetBIOS name query in place of the WINS server. If the router cannot answer, the router forwards the query packets to the
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Product Features When a DHCP server is enabled and configured, it assigns and manages IP addresses from a specified address pool to DHCP clients. The options supported by this server are sufficient for Windows 95 clients. If more IP addresses or options are required, a commercial DHCP server (for example, Windows NT) should be used. DHCP Relay Agent Cisco 700 series routers can function as a DHCP relay agent. (The router can also act as a DHCP server, but not both at the same time.) When configured,
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Product Features again every 30 seconds for as long as the connection exists. If the connection does not exist, no RIP data is sent. This prevents the line from being brought up by RIP packets where the update is periodic. Force Dynamically Negotiated IP Addresses When this feature is on, the negotiated IP address is assigned to the Standard or the user-defined profile (whichever profile is used to place the call). It also tells the software to try any IP address configured for this profile in the IP
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Product Features Call Forwarding (Sweden and Finland) Call forwarding supplementary service has been added for Sweden and Finland (NET3). Call forwarding is implemented differently in the European countries. The version implemented here uses keypad procedures and is only partly ETSI-compliant. Three-Way Call Conferencing Cisco 700 series routers can add another party to an active voice call. You can connect three people using this feature. For more information on configuring three-way call confer
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Product Features IPX Support To improve performance, only the services defined in Novell IPX Router Specification 107–000029–001 are supported, and a maximum of 400 IPX route entries and 200 IPX SAPs are allowed. If you need more route and SAPs entries, software Release 4.0(1) and higher supports set ipx sap helper and set ipx gateway commands. IPX Ping The IPX ping feature allows you to determine if the specified IPX node is alive and reachable. Cisco 700 series routers only generate Novell IPX fo
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Security Features Service Advertising Protocol (SAP) Helper Cisco 700 series routers can forward to a specified router or server (instead of responding to them) all SAP get-nearest-service request broadcast packets and get general service request broadcast packets to an IPX router or IPX server as unicast packets. Cisco 700 series routers forward these request packets without looking in the local SAP table. The parameters are set using the set ipx sap helper command. Route Summarization Route sum
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SNMP Support Leased Line Authentication Requirement Removed For 64-kbps or 128-kbps leased line connections, previous versions of the software required PAP/CHAP authentication to identify the corresponding profile. In software Release 4.0(1) and higher, the authentication sequence is no longer required for leased line connections. To eliminate the need for authentication, a user-defined profile named leasedline must be present and defined. If this profile is not present upon call connect, the router
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Supported MIBs Supported MIBs Cisco 700 series routers support the following SNMP Management Information Bases (MIBs): • MIB II • IEEE 802.1d Bridge MIB MIB II Cisco 700 series routers support MIB II standards as follows: • System • Interfaces (all objects, except that a connection is considered to be an interface) • Address translation • Internet Protocol (IP) • Transmission Control Protocol (TCP) • Internet Control Message Protocol (ICMP) • User Datagram Protocol (UDP) • SNMP IEEE 802.1d Bridg
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Supported RFCs Supported RFCs Cisco 700 series routers support the following Request For Comments (RFC) documents: • RFC 1058—Routing Information Protocol (RIP) • RFC 1332—PPP Internet Protocol Control Protocol (IPCP) • RFC 1334—PPP Authentication Protocols • RFC 1541—Dynamic Host Configuration Protocol (DHCP) • RFC 1552—PPP Internetwork Packet Exchange • RFC 1570—PPP Link Control Protocol (LCP) Extensions • RFC 1582—Extensions to RIP to Support Demand Circuits • RFC 1618—PPP Over ISDN • RFC 1638
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PH2 PH1 TXD Cisco 700 RXD CH2 CH1 RXD TXD TXD RXD LAN LINE Router Panels Figure 1-1 Front Panel, Cisco 760 Series Router (Cisco 766 Shown) Figure 1-2 Front Panel, Cisco 770 Series Router (Cisco 776 Shown) The ports for the Ethernet, ISDN S/T, ISDN U, and basic telephone service connections are located on the rear panel of the Cisco 760 series router, as shown in Figure 1-3 through Figure 1-6 and on the rear panel of the Cisco 770 series routers, as shown in Figure 1-7 through Figure 1-10. Overv
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ISDN S/T CONFIG S 0 ISDN S/T CONFIG S NT-1 0 ISDN S/T CONFIG S 0 NODE HUB NODE HUB NODE HUB Link Link Link ISDN U 10BASET 10BASET 10BASET +5V ---1.5A +/-5% -30V--- 0.2A +/-25% +5V ---1.5A +/-5% -30V--- 0.2A +/-25% +5V ---1.5A +/-5% -30V--- 0.2A +/-25% Router Panels Figure 1-3 Rear Panel, Cisco 761 Router Figure 1-4 Rear Panel, Cisco 762 Router Figure 1-5 Rear Panel, Cisco 765 Router 1-14 Cisco 700 Series Router Installation Guide H5905 H5789 H5906
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ISDN S/T CONFIG S 0 NT-1 ISDN S/T 4 3 2 CONFIG 1 S 0 ISDN S/T 4 3 2 CONFIG 1 S NT-1 0 NODE HUB Link ISDN U CISCO 771 10BASET CISCO 772 10BASET ISDN U 10BASET +5V ---1.5A +/-5% -30V--- 0.2A +/-25% +5V ---1.5A +/-5% -30V--- 0.2A +/-25% +5V ---1.5A +/-5% -30V--- 0.2A +/-25% Router Panels Figure 1-6 Rear Panel, Cisco 766 Router Figure 1-7 Rear Panel, Cisco 771 Router Figure 1-8 Rear Panel, Cisco 772 Router Overview of Cisco 700 Series Routers 1-15 H5788 H8503 H8504
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4 ISDN S/T CONFIG 3 2 1 S 0 4 3 ISDN S/T CONFIG 2 1 S 0 NT-1 CISCO 775 10BASET CISCO 776 10BASET ISDN U +5V ---1.5A +/-5% -30V--- 0.2A +/-25% +5V ---1.5A +/-5% -30V--- 0.2A +/-25% Router Panels Figure 1-9 Rear Panel, Cisco 775 Router Figure 1-10 Rear Panel, Cisco 776 Router 1-16 Cisco 700 Series Router Installation Guide H7861 H8502
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Specifications Specifications The specifications for Cisco 700 series routers are listed in Table 1-2. Table 1-2 System Specifications—Cisco 700 Series Routers Description Design Specification (Height x Width x Depth) 1.6 x 8.3 x 9.6 inches (4.1 x 21.1 x 24.4 cm) Weight Cisco 761 and Cisco 771: 1.4 lb. (0.6 kg) Cisco 762 and Cisco 772: 1.5 lb. (0.7 kg) Cisco 765 and Cisco 775: 1.6 lb. (0.7 kg) Cisco 766 and Cisco 776: 1.7 lb. (0.8 kg) Power supply External Voltage 100 or 250 VAC Frequency 50 to 60 H
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Specifications Table 1-3 lists the interfaces available on each Cisco 700 series router by model number. Table 1-3 Cisco 700 Series Router Interfaces by Model Model Interfaces Cisco 761 1 Ethernet and 1 ISDN BRI S/T Cisco 762 1 Ethernet, 1 ISDN BRI S/T, and 1 ISDN BRI U Cisco 765 1 Ethernet, 1 ISDN BRI S/T, and 2 analog telephone Cisco 766 1 Ethernet, 1 ISDN BRI S/T, 1 ISDN BRI U, and 2 analog telephone Cisco 771 4 port unmanaged Ethernet hub and 1 ISDN BRI S/T Cisco 772 4 port unmanaged Etherne
