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Chapter 11: Basic Bring-up Procedure for the C4 CMTS

STANDARD Revision 1.0 C4® CMTS Release 8.3 User Guide

12. Local Authentication

To create a new user on the system, enter:

configure username tempuser password <password>

Use the default method list (local database) by entering:

configure enable password <password>

configure authentication default local

configure line vty 0 15 authentication default login-authentication

configure line vty 0 15 authentication default enable-authentication

13. Managing the C4 CMTS

Managing consists of various system administration tasks, including those related to accounting, security, and

configuration. This is accomplished through in-band or out-of-band management or both. Management functions can use

telnet, SSH, SNMP, and other protocols.

Among the other management protocols are TOD, IPDR, DNS, TACACS, RADIUS, Syslog, NTP, and Event Messaging and

COPS for PacketCable.

In-band Management — This means that the telnet/ssh/snmp sessions are carried through the Ethernet interfaces on the

RCM line card.

Pro: Access Control Lists (ACLs) can be applied to increase security

Con: In-band management uses the same interfaces as all the modem traffic.

To provision in-band management, permit and define a standard ACL by entering:

configure access-list 1 permit any

configure interface gigabitEthernet 17/0 ip scm access-group 1

configure ip scm access

Out-of-band Management — This means that the telnet/snmp sessions are carried through the Ethernet interfaces on the

SCM card, so that management traffic is not being carried on the same channels as data traffic.

Pro: The IPs can be put on a private network and only management traffic is carried on these links

Con: ACLs can not be applied to these interfaces. The interface is 10MBPS and half duplex. The C4 CMTS requires a reboot

if these need to be changed.

Arris C4C User Manual

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