Current configuration:
!
version 12.0
service config
service timestamps debug uptime
service timestamps log uptime
service password-encryption
!
hostname ACM
!
logging buffered 8192 debugging
no logging console
enable secret 5 $1$QpNK$8qrNkPnCa/Oi76WMAYnLC0
enable password 7 141611065C54
!
username nnfco password 7 14151D1F180B2422
ip subnet-zero
no ip source-route
ip name-server 194.243.154.62
ip name-server 195.31.190.31
isdn switch-type basic-net3
!
process-max-time 200
!
interface Ethernet0
 ip address 192.6.1.200 255.255.255.0
 no ip directed-broadcast
 no ip proxy-arp
 ip nat inside
 no cdp enable
!
interface Serial0
 no ip address
 no ip directed-broadcast
 shutdown
!
interface BRI0
 no ip address
 no ip directed-broadcast
 encapsulation ppp
 timeout absolute 1 0
 dialer pool-member 1
 isdn switch-type basic-net3
 ppp authentication chap pap callin

interface Dialer1
 description ISP
 ip address negotiated
 no ip directed-broadcast
 no ip proxy-arp
 ip nat outside
 encapsulation ppp
 no ip split-horizon
 timeout absolute 1 0
 dialer remote-name theta98
 dialer idle-timeout 30
 dialer string 0147838383 class DialClass
 dialer hold-queue 10
 dialer pool 1
 dialer-group 1
 pulse-time 0
 ppp authentication chap pap callin
 ppp chap hostname nnfco
 ppp chap password 7 0823435A1D160B1E
 ppp pap sent-username nnfco password 7 0306541F12002F45
!
ip nat inside source list 18 interface Dialer1 overload
ip classless
ip route 0.0.0.0 0.0.0.0 Dialer1
!
!
map-class dialer DialClass
access-list 18 permit 192.6.1.0 0.0.0.255
access-list 101 deny   udp any eq netbios-ns any
access-list 101 deny   udp any eq netbios-ss any
access-list 101 deny   udp any eq netbios-dgm any
dialer-list 1 protocol ip permit
snmp-server community public RO
!
line con 0
 exec-timeout 120 0
 transport input none
line vty 0 4
 exec-timeout 0 0
 password 7 060B0A2C43
 login local
!
end