R6#sh run
Building configuration...

Current configuration : 817 bytes
!
version 12.1
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname R6
!
!
!
!
!
!
ip subnet-zero
ip tcp synwait-time 5
no ip domain-lookup
!
isdn switch-type basic-ni
!
!
!
!
!
interface Ethernet0
 ip address 202.21.8.6 255.255.255.128
!
interface Serial0
 no ip address
 shutdown
 no fair-queue
!
interface Serial1
 ip address 202.21.8.166 255.255.255.252
!
interface Serial2
 ip address 202.21.8.170 255.255.255.252
!
interface Serial3
 ip address 161.8.144.2 255.255.255.252
 clockrate 64000
!
interface BRI0
 ip unnumbered Ethernet0
 encapsulation ppp
 dialer string 2024
 dialer-group 1
 isdn switch-type basic-ni
 isdn spid1 2023
!
ip classless
ip http server
!
dialer-list 1 protocol ip permit
!
!
line con 0
 exec-timeout 0 0
 privilege level 15
 logging synchronous
line aux 0
line vty 0 4
!
end

R6#