Cisco Systems manual Testing the Cisco 1604 Connection to the Cisco AS5300

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Chapter 3 Configuring the Cisco 1604 Router

Step 6—Testing the Cisco 1604 Connection to the Cisco AS5300

dialer-group 2

isdn switch-type basic-ni isdn spid1 51255544330101 isdn spid2 51255544340101 no cdp enable

pppauthentication chap pap callin ppp multilink

hold-queue 75 in

!

ip classless

ip route 0.0.0.0 0.0.0.0 10.1.254.1 permanent

!

dialer-list 2 protocol ip permit

!

line con 0 line vty 0 4

!

end

Tips

•To see the load currently assigned to the interface, enter the show interface bri 0:1 command. Search for the output field “load x/255.” Use SNMP to monitor the load on an interface. How you set the threshold depends on each site’s characteristics, such as traffic patterns and WAN costs. If you are in an environment where all calls are local, then you can set up the connections full time.

•Large ISDN phone bills arise due to failure to appropriately tune filters and load thresholds. Filters are dialer lists, which are applied with dialer groups. The dialer-listcommand and dialer-groupcommand control the first B channel. The dialer load-thresholdcommand controls the behavior when additional B channels are connected.

•In this case study, the Cisco AS5300 does not dial out to the remote sites. Therefore, do not tune the central site’s dialer threshold setting. Only the remote side is in charge of opening and closing channels based on the settings of the dialer commands.

•Make sure you configured the correct SPID numbers on the BRI interface.

Step 6—Testing the Cisco 1604 Connection to the Cisco AS5300

The test strategy is to ping the Cisco AS5300’s WAN port; then, ping the backbone behind the access server. Cisco recommends you ping the domain name server (DNS) on the backbone since this device should always be up and operating.

Pinging a next-hop IP address can have complications in an IP-unnumbered environment. For example, complications arise when WAN interfaces are configured with unnumbered IPs.

Note The typical low-level test to verify connectivity in a sync PPP environment is to ping a device on the other end of the WAN link. In a modem environment (async PPP), the low-level test is to establish an EXEC shell on the router.

Cisco IOS Dial Services Quick Configuration Guide

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Contents Network Topology, Hardware, and Software Selections Configuring the Cisco 1604 RouterSystem image file is flashc1600-sy-l.120-x Verifying Your Start Up ConfigurationOverview of Steps IOS tm 1600 Software C1600-SY-L, Version12288K bytes of processor board Pcmcia flash Read only Configuring the Host Name, Password, and Time StampsEthernet/IEEE 802.3 interfaces Isdn Basic Rate interfaces 2048K bytes of Dram onboard 16384K bytes of Dram on SimmHq-sanjoseconfig#service password-encryption Enter global configuration modeRouter# configure terminal Routerconfig# hostname robo-austinRobo-austin#show privilege Configuring Local AAA SecurityRobo-austinconfig#aaa authentication ppp default local Verifying Local AAA Security ConfigurationRobo-austinconfig#username joe-admin password joe-password Robo-austinconfig#aaa authentication login default localRobo-austinconfig-if#ip address 10.1.4.1 Configuring the Ethernet InterfaceDown Verifying the Ethernet Interface ConfigurationStatus Ethernet0 10.1.4.1 YES manualLost carrier, 0 no carrier \WINDOWS pingRobo-austinconfig-if#ppp authentication chap pap callin Configuring Basic Rate InterfaceEnable PPP Robo-austinconfig-if#ip address 10.1.254.4Verifying BRI Configuration Configuring Dial-on-Demand Routing Disable fair queuingRobo-austinconfig-if#dialer load-threshold 60 either Robo-austinconfig#username hq-sanjose password austin-pw Verifying DDR ConfigurationEnsure that all unknown subnets use the default route Robo-austinconfig#dialer-list 2 protocol ip permit= Isdn Dial StringLast called 14085551234 NeverTesting the Cisco 1604 Connection to the Cisco AS5300 Debug isdn q931 Undebug allTerminal monitor Debug dialerRobo-austin#show dialer map See Isdn Setup is transmittedSee Authentication phase is initiated by robo-austin Verify that the correct dialer map exists080355 BR01 LCP I Confreq REQsent id 7 len See Ipcp negotiation beginsSee 080357 Connection is made to hq-sanjose 080355 BR01 LCP O Confreq Closed id 42 len080355 BR01 LCP I Confack ACKsent id 42 len 080355 BR01 LCP O Confack REQsent id 7 lenShow dialer IsdnShow ppp multilink Interface IP-Address OK? Method Status Protocol Robo-austin#copy running-config startup-config Saving the Configuration

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.
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