Cisco AS5800 Specifications download pdf (Page 78)

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Cisco AS5800 Operations, Administration, Maintenance, and Provisioning Guide

DOC-7810814=

Chapter 2 Commissioning

Task 7. Testing Asynchronous EXEC Shell Connections

Table 2-10 describes the previous commands:

Task 7. Testing Asynchronous EXEC Shell Connections

This task verifies that the following components are working:

• Physical asynchronous data path

• Basic modem links

• Basic IP functionality to support EXEC shell sessions

The Cisco IOS software provides a command-line interface (CLI) called the EXEC.

The EXEC:

• Can be accessed by dialing in with a modem

• Provides access to terminal EXEC shell services (no PPP) to do the following:

–

Modify configuration files

–

Change passwords

–

Troubleshoot possible problems including modem connections

–

Access other network resources by using Telnet

During this task, some administrators try to make complex services function such as PPP-based Web

browsing. Do not jump ahead. Many other elements still need to be configured (for example, PPP and

IPCP). The asynchronous-shell test ensures that the EXECs log in prompt can be accessed by a client

modem. Taking a layered approach to building a network isolates problems and saves time.

Note The Cisco AS5800 is designed to process PPP sessions. To support high ratios of

EXEC-shell users or V.120 users, work with your support team.

Step 1 Locate a client PC, client modem, and analog line. From the client PC, open a terminal emulation

program (such as Hyper Terminal, not dialup networking) and connect to the client modem. Figure 2-6

shows the network environment for this test.

Table 2-10 Domain-Name Commands

Command Purpose

ip domain-lookup Enables IP domain-name lookups.

ip host aurora 172.22.100.9 Creates a local name-to-address map. This map is useful when the

NAS is not entered in a DNS server.

ip domain-name the.doc Tells the NAS how to qualify DNS look ups. In this example,

the.doc is appended to the end of each name that is looked up.

ip name-server 172.22.11.10

ip name-server 172.22.12.10

Specifies the primary and secondary name servers. They are used

for mapping names to IP addresses.

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