Chapter 3 Configuring the Cisco 1604 Router

Step 4—Configuring Basic Rate Interface

Step 4—Configuring Basic Rate Interface

Enable the Cisco 1604’s Basic Rate Interface (BRI) connectivity with the telephone company’s central office switch. PPP framing is used on the B channels.

You can authenticate the remote side on any connection. The callin keyword used in Step 7 below means that all outbound connection attempts made by the Cisco 1604 will not authenticate the remote peer, which is the device at the other end of the PPP link (Cisco AS5300). Only the calls that come into the Cisco 1604 are authenticated.

Note On BRI interfaces, it is not necessary to configure dialer inband because the BRI interfaces are dialer inband interfaces by default. Interfaces BRI0:1 and BRI0:2 are controlled by the dialer interface interface bri 0.

To configure BRI on the Cisco 1604, enter the following commands beginning in global configuration mode:

Step 1 Configure the ISDN switch type, which is basic-ni1in this example. robo-austin(config)#isdn switch-type basic-ni1

Step 2 Configure the IP address and subnet mask on the BRI interface.

robo-austin(config)# interface bri 0

robo-austin(config-if)#ip address 10.1.254.4 255.255.255.0

Step 3 Configure your SPIDs, which are required by many switch types.

robo-austin(config-if)#isdn spid1 51255544330101 robo-austin(config-if)#isdn spid2 51255544340101

Step 4 Enable PPP.

robo-austin(config-if)# encapsulation ppp Step 5 Disable fair queuing.

robo-austin(config-if)# no fair-queueStep 6 Enable PPP multilink.

robo-austin(config-if)# ppp multilink

Step 7 Enable CHAP and PAP authentication on the interface during LCP negotiation. The access server first authenticates with CHAP. If CHAP is not used by the remote client, then the access server tries PAP. CHAP is requested first.

robo-austin(config-if)#ppp authentication chap pap callin

Step 8 Bring up the interface. The no shutdown command changes the state of the interface from administratively down to up.

robo-austin(config-if)# no shutdown

Cisco IOS Dial Services Quick Configuration Guide

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Cisco Systems 1604 manual Configuring Basic Rate Interface, Enable PPP, Robo-austinconfig-if#ip address 10.1.254.4

1604 specifications

Cisco Systems 1604 is a multifaceted router that exemplifies the evolution of networking technology. Introduced in the 1990s, it was designed primarily for interconnecting local area networks (LANs) and wide area networks (WANs). As one of the early routers in the Cisco family, the 1604 laid the groundwork for numerous advancements in the networking space.

One of the standout features of the Cisco 1604 is its modular design. This architecture allows users to customize the router according to their specific needs by adding various modules and interface cards. This adaptability made it popular among organizations that required flexible networking solutions. The router supports multiple types of interfaces including Ethernet, Token Ring, and serial connections, accommodating a variety of networking environments.

In terms of performance, the Cisco 1604 offers impressive capabilities for its time. It supports both routing and bridging functions, enabling it to seamlessly integrate different types of networks. The router can handle up to 4Mbps of bandwidth, sufficient for small to medium-sized network environments. Its built-in memory capacity allows for efficient processing, providing a reliable platform for data communications.

The Cisco 1604 is built on Cisco's proprietary IOS (Internetwork Operating System), which is a critical component of its operation. IOS provides a robust command-line interface for configuration and management, facilitating advanced networking tasks such as routing protocols, security features, and network diagnostics. The support for multiple routing protocols, including RIP, OSPF, and EIGRP, enhances its functionality and compatibility with diverse network architectures.

Security features in the Cisco 1604 are notable, providing essential tools to safeguard data transmitted across networks. It supports various access control lists (ACLs) that enable administrators to regulate network traffic and restrict unauthorized access.

Moreover, the Cisco 1604 was designed with reliability in mind. It includes features like automatic keep-alives for connection monitoring and error-correction protocols to ensure consistent performance.

In conclusion, the Cisco Systems 1604 router represents a significant milestone in networking technology. Its modular design, high performance, advanced IOS capabilities, and robust security measures make it a noteworthy solution for businesses looking to build effective networking infrastructures. While newer models have surpassed its capabilities, the legacy of the Cisco 1604 continues to influence modern networking practices and designs.