Answers to Chapter 6 Q&A Section 411
12
DDR traditionally involves the use of static routes. If static routes are not desired, what
technology can be implemented?
You can implement snapshot routing.
13
What information is required of the telco to implement PRI implementations?
The telco must supply the switch type, the framing, and the line code.
14
List the options available for T1 and E1 framing and line code configuration.
The available options are T1 = AMI/B8ZS and SF/ESF, E1 = AMI/HDB3, and
CRC4/No-CRC4.
15
List the command to have the router forward all incoming voice calls to internal MICA
technology modems.
isdn incoming-voice modem
16
Describe the key difference between Cisco's bandwidth on demand and Multilink PPP.
BOD does not make use of a standardized implementation; it is Cisco-proprietary. The
implementation of BOD simply requires the entry of a dialer load-threshold command.
PPP Multilink is a standardized implementation of load sharing technologies. Once the
dialer load-threshold command has been entered, enter the ppp multilink command to
activate the standardized version.
17
Create an access list that specifies HTTP and any ICMP traffic as interesting.
access-list 100 permit tcp any any eq http
access-list 100 permit icmp any any
dialer-list 1 protocol ip list 100
Use Figure A-1 to answer the remaining questions.
18
Configure router A such that any IP traffic causes an ISDN call to be placed.
dialer-list 1 protocol ip permit