AR1（Relay中繼）配置：

#使能DHCP

dhcp enable

#

#進(jìn)入接口配置地址；配置dhcp連接模式為relay;指明dhcp server-IP；

interface GigabitEthernet0/0/0

?ip address 172.16.1.254 255.255.255.0?

?dhcp select relay

?dhcp relay server-ip 10.1.23.3

#配置網(wǎng)關(guān)接口

interface GigabitEthernet0/0/1

?ip address 10.1.12.1 255.255.255.0?

AR3服務(wù)器側(cè)配置（DHCP server）：

#使能dhcp服務(wù)

dhcp enable

#建立名為hcip的IP地址池配置網(wǎng)關(guān)，租期，dns等信息

ip pool hcip

?gateway-list 172.16.1.254?

?network 172.16.1.0 mask 255.255.255.0?

?lease day 0 hour 8 minute 0?

?dns-list 8.8.8.8?

#

#接口配置IP；接口下做全局global(重點(diǎn))

interface GigabitEthernet0/0/0

?ip address 10.1.23.3 255.255.255.0?

?dhcp select global

#

#

interface LoopBack0

?ip address 3.3.3.3 255.255.255.255?

#

做中繼的條件是relay（中繼）和server（服務(wù)器）互通，所以AR1,AR2,AR3做OSPF。

OSPF配置:

#AR3 OSPF配置

ospf 1 router-id 3.3.3.3?

?area 0.0.0.0?

?network 1.1.1.1 0.0.0.0?

?network 2.2.2.2 0.0.0.0?

?network 3.3.3.3 0.0.0.0?

?network 10.1.12.0 0.0.0.255?

?network 10.1.23.0 0.0.0.255?

?network 172.16.1.0 0.0.0.255?

#

#AR1 OSPF配置

ospf 1 router-id 1.1.1.1?

?area 0.0.0.0?

?network 1.1.1.1 0.0.0.0?

?network 2.2.2.2 0.0.0.0?

?network 3.3.3.3 0.0.0.0?

?network 10.1.12.0 0.0.0.255?

?network 10.1.23.0 0.0.0.255?

?network 172.16.1.0 0.0.0.255?

#

#AR2 OSPF配置

ospf 1 router-id 2.2.2.2?

?area 0.0.0.0?

?network 1.1.1.1 0.0.0.0?

?network 2.2.2.2 0.0.0.0?

?network 3.3.3.3 0.0.0.0?

?network 10.1.12.0 0.0.0.255?

?network 10.1.23.0 0.0.0.255?

?network 172.16.1.0 0.0.0.255?

#