学习PPPOE遇到问题 麻烦大神们 看看

chengfengyijiu

最近学习PPPOE遇到了个问题  麻烦大神们 点拨下小弟

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R2 上做了DHCP PPPOEAAA  并且跑了路由   R4上去认证 可是怎么也拿不到地址

我就在想直连可以获取地址 那跨广播域为什么就不行了（是不是由于DHCP 的helper-address但是做了还是没起作用）

R2  R3R1就跑普通路由

hostname RACK32R2

enable password ccie

aaa new-model

aaa authentication ppp ccnp local-case

ip dhcp excluded-address 172.16.3.1

ip dhcp pool ccie

   network172.16.3.0 255.255.255.0

bba-group pppoe ccna

virtual-template 1

!

!

interface Loopback1

ip address 2.2.2.2255.255.255.0

!

interface FastEthernet0/0

ip address172.16.12.2 255.255.255.0

duplex auto

speed auto

pppoe enable groupccna

!

interface FastEthernet0/1

ip address172.16.23.2 255.255.255.0

duplex auto

speed auto

!

interface Virtual-Template1

mtu 1492

ip address172.16.3.1 255.255.255.0

peer default ipaddress dhcp-pool ccie

ppp authenticationpap callin ccnp（即使NO掉这条还是没办法拿到地址）

!

router eigrp 1

network 172.16.0.0

no auto-summary

R4

hostname R4

interface FastEthernet0/1

ipaddress 172.16.14.4 255.255.255.0

duplex auto

speed auto

pppoe enable group global

pppoe-client dial-pool-number 1

!

interface Dialer1

mtu1492

ipaddress negotiated

iphelper-address 172.16.3.1

encapsulation ppp

dialer pool 1

!

router eigrp 1

network 172.16.0.0

noauto-summary

ip route 0.0.0.0 0.0.0.0 Dialer1