1.動(dòng)態(tài)ip：
router#sho run
Building configuration...

Current configuration : 5285 bytes
!
version 12.1
no service single-slot-reload-enable
no service pad
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname router
!
logging rate-limit console 10 except errors
enable secret 5 $1$K3L0$0rhn4PtxpWL2hqzIWDk2M1
!
username zhu password 0 123
username guest password 0 guest
clock timezone Shanghai 8
mmi polling-interval 60
mmi auto-configure
no mmi pvc
mmi snmp-timeout 180
ip subnet-zero
no ip finger
no ip domain-lookup
ip name-server 202.96.199.133
ip dhcp excluded-address 192.168.0.254
!
ip dhcp pool DHCPPool
  import all
  network 192.168.0.0 255.255.255.0
  default-router 192.168.0.254
  dns-server 202.96.199.133
!
no ip dhcp-client network-discovery
vpdn enable
no vpdn logging
!
vpdn-group 1
request-dialin
 protocol pppoe
!
!
!
!
interface Ethernet0
ip address 192.168.2.254 255.255.255.0 secondary
ip address 192.168.0.254 255.255.255.0
ip access-group 188 in
ip accounting output-packets
ip adjust-mss 1450
ip nat inside
hold-queue 32 in
!
interface ATM0
bandwidth 512
no ip address
no atm ilmi-keepalive
pvc 0/16 ilmi
!
pvc 8/81
 protocol pppoe
pppoe-client dial-pool-number 1
!
bundle-enable
dsl operating-mode auto
hold-queue 224 in
!
!

!
interface Dialer1
bandwidth 512
ip address negotiated
ip mtu 1492
ip nat outside
encapsulation ppp
dialer pool 1
dialer remote-name redback
dialer-group 1
ppp authentication pap callin
ppp pap sent-username vip password 7 1504021C
!
ip classless
ip route 0.0.0.0 0.0.0.0 Dialer1
ip http server
!
ip nat inside source list 1 interface Dialer1 overload
dialer-list 1 protocol ip list 1
line con 0
exec-timeout 120 0
logging synchronous
transport input none
stopbits 1
line vty 0 4
exec-timeout 30 0
password xxx
login
length 15
!
!
end

2.靜態(tài)的ip地址就簡單了
int atm0/0
ip address 1.1.1.2 255.255.255.252
dsl operate auto
pvc 8/35
encap aalsnap5
!
ip route 0.0.0.0 0.0.0.0 1.1.1.1