PPP动态指定单个地址

AR1配置

interface Serial4/0/0
 link-protocol ppp
 remote address 100.100.100.50 
 ip address 100.100.100.100 255.255.255.0 

AR2配置

interface Serial4/0/0
 link-protocol ppp
 ip address ppp-negotiate

[AR2]dis ip interface brief 
*down: administratively down
^down: standby
(l): loopback
(s): spoofing
The number of interface that is UP in Physical is 2
The number of interface that is DOWN in Physical is 4
The number of interface that is UP in Protocol is 2
The number of interface that is DOWN in Protocol is 4

Interface                         IP Address/Mask      Physical   Protocol  
GigabitEthernet0/0/0              unassigned           down       down      
GigabitEthernet0/0/1              unassigned           down       down      
GigabitEthernet0/0/2              unassigned           down       down      
NULL0                             unassigned           up         up(s)     
Serial4/0/0                       100.100.100.50/32    up         up        
Serial4/0/1                       unassigned           down       down      
[AR2]

PPP用地址池指定远端机的IP地址

AR1配置

ip pool HCIE
 network 200.200.200.0 mask 255.255.255.0 
interface Serial4/0/0
 link-protocol ppp
 remote address pool HCIE
 ppp ipcp default-route
 ip address 100.100.100.100 255.255.255.0 

AR2配置

interface Serial4/0/0
 link-protocol ppp
 ip address ppp-negotiate

<R2>dis ip interface brief 
*down: administratively down
^down: standby
(l): loopback
(s): spoofing
The number of interface that is UP in Physical is 2
The number of interface that is DOWN in Physical is 4
The number of interface that is UP in Protocol is 2
The number of interface that is DOWN in Protocol is 4

Interface                         IP Address/Mask      Physical   Protocol  
GigabitEthernet0/0/0              unassigned           down       down      
GigabitEthernet0/0/1              unassigned           down       down      
GigabitEthernet0/0/2              unassigned           down       down      
NULL0                             unassigned           up         up(s)     
Serial4/0/0                       200.200.200.254/32   up         up        
Serial4/0/1                       unassigned           down       down      
<R2>