I don't know how clean this config is since it was done before my time, but this works for us on a 3640 with a single PRI and 12 MICA modems that we use for RAS and ISDN dial backup for our WAN. This is only the stuff pertainent to RAS - use your own dialer config for your BRI dialups. I'd highly suggest testing this in a lab first, if possible. You can omit the IPX statements if you're doing an IP only dialup. Also, the RADIUS config is for Novell NDS.
----
aaa new-model
aaa authentication login default local
aaa authentication ppp dialin local radius
!
ip address-pool local
ipx routing
ipx internal-network xxxxx
!
async-bootp dns-server 1.1.1.1 2.2.2.2 3.3.3.3
async-bootp nbns-server 1.1.1.1 2.2.2.2
!
controller T1 0/0
framing esf
linecode b8zs
pri-group timeslots 1-24
!
interface Loopback0
ip address 1.1.1.2 255.255.255.0
ipx network zzzz
!
interface Serial0/0:23
description ISDN D-channel for T1/PRI
no ip address
encapsulation ppp
no keepalive
dialer rotary-group 0
dialer-group 1
isdn switch-type primary-ni
isdn incoming-voice modem
no fair-queue
!
interface Group-Async1
ip unnumbered Loopback0
encapsulation ppp
dialer in-band
dialer idle-timeout 1800
async mode interactive
ipx ppp-client Loopback0
peer default ip address pool default
no fair-queue
ppp authentication pap chap dialin
ppp multilink
group-range 33 44
!
interface Dialer0
ip address 1.1.1.200 255.255.255.252
encapsulation ppp
no ip mroute-cache
dialer in-band
dialer idle-timeout 1800
dialer-group 1
no peer default ip address
no fair-queue
ppp authentication pap chap dialin
ppp multilink
!
ip local pool default 2.2.2.1 2.2.2.100
!
radius-server host 2.2.2.100 auth-port 1645 acct-port 1646 non-standard
radius-server key keyid
