Chapter 3: Configuring Point-to-Point Protocol and Controlling Network Access

Commands:

3.1.3 Configuring Cisco Access Servers

Router(config)#line line-number
Router(config-line)#autoselect {arap | ppp | slip | during-login}

 

3.1.4 Enabling PPP

router(config-if)#encapsulation ppp
or
router(config-if)#encapsulation slip

 

3.1.5 Configuring Dedicated or Interactive PPP Sessions

router(config-if)# async mode dedicated
Router(config-if)# async mode interactive

 

3.1.6 Configuring the Interface Addressing Method for Local Devices

router(config-if)#ip address address mask
router(config-if)#ip unnumbered type number

 

3.1.7 Configuring the Interface-Addressing Method for Remote Devices

router(config-if)#peer default ip address [address | pool pool-name | dhcp]
router(config-if)#async dynamic address

 

3.2.3 Configuring PAP Authentication

router(config-if)#ppp authentication pap

 

3.2.4 Configuring CHAP Authentication

router(config-if)#ppp authentication chap

 

3.2.5 Interface Commands for PAP and CHAP Authentication

Default PAP
router(config-if)#ppp authentication pap chap

or

Default CHAP
router(config-if)#ppp authentication chap pap

 

3.3.1 Callback Implementation

router(config)#dialer hold-queue number of packets timeout seconds

 

3.3.2 Callback: how does it work?

router(config-if)#dialer callback-secure
router(config-if)#ppp callback accept
router(config-if)#ppp authentication pap

or 

router(config-if)#b

 

3.3.3 Configuring Async Callback

Router(config)#username username password password [callback-dialstring telephone-number][callback-line line-number][callback-rotary rotary-group-number]
Router(config-if)#ppp callback accept
Router(config-if)#ppp callback initiate
Router(config)#line line-number
Router(config-line)#callback forced-wait seconds
Router(config-line)#script callback script-name

 

3.4.2 Configuring Compression

Router(config-if)#compress [predictor|stac|mppc]
Router(config-int)#ip tcp header-compression

 

3.4.4 Multilink Operation and Configuration

Router(config-if)#ppp multilink
Router#show ppp multilink

 

3.4.5 Verifying and Troubleshooting PPP

router#show dialer
router#debug ppp negotiation