There are a lot of different configurations possible...here's one example:
Current configuration:
!
service timestamps debug datetime msec
hostname xxxxxx
enable secret 5 xxxxxxxxxx
enable password 7 xxxxxxxx
!
username cisco password 7 xxxxxxxxx
!
!
interface Group-Async1
ip unnumbered loopback0
encapsulation ppp
async mode interactive
peer default ip address pool dialup
no cdp enable
ppp authentication chap callin
group-range 0 7
!
ip local pool dialup 192.168.10.1 192.168.10.254
!
ip route 0.0.0.0 0.0.0.0 x.x.x.x
!
line con 0
line 0 7
login local
autoselect during-login
autoselect ppp
modem InOut
transport input all
line aux 0
line vty 0 4
password 7 xxxxx
!
end
----------------
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname Dial
!
enable password diaal
!
username cisco password 0 cisco
ip subnet-zero
no ip domain-lookup
ip name-server 198.6.1.1
modemcap entry modem:TPL=ats0=1
!
!
!
interface Ethernet0/0
description connected to Internet
ip address 128.1.1.1 255.255.0.0
!
interface Ethernet0/1
no ip address
shutdown
!
interface Group-Async1
ip unnumbered Ethernet0/0
encapsulation ppp
ip tcp header-compression passive
async dynamic routing
async mode dedicated
peer default ip address pool address_pool
ppp authentication chap pap
group-range 33 40
!
ip local pool address_pool 128.1.1.1 128.1.1.10
ip classless
ip route 0.0.0.0 0.0.0.0 128.1.1.14
!
line con 0
exec-timeout 0 0
password diaal
login
line 33 40
modem InOut
modem autoconfigure type modem
transport input all
flowcontrol hardware
line aux 0
line vty 0 4
password diaal
login
