网络拓扑图

拓扑说明

用户路由器用于模拟家用拨号路由器，该设备为pppoe的客户端
电信ISP设备则模拟电信的网络设备，该设备为pppoe的服务端
而中间交换机则用于模拟光猫；光猫为桥接模式，此处不做任何配置，当场傻瓜式设备使用

电信ISP设备配置

<Huawei>system-view 		# 进入系统视图
[Huawei]sysname ISP			# 配置路由器名字
[ISP]aaa
[ISP-aaa]local-user huawei password cipher huawei
[ISP-aaa]local-user huawei service-type ppp
[ISP-aaa]quit
[ISP]ip pool pppoe
[ISP-ip-pool-pppoe]network 100.64.254.0 mask 24
[ISP-ip-pool-pppoe]gateway-list 100.64.254.1
[ISP-ip-pool-pppoe]dns-list 114.114.114.114 223.5.5.5
[ISP-ip-pool-pppoe]quit
[ISP]interface Virtual-Template 1
[ISP-Virtual-Template1]ip address 100.64.254.1 24
[ISP-Virtual-Template1]remote address pool pppoe
[ISP-Virtual-Template1]ppp authentication-mode chap
[ISP]interface GigabitEthernet 0/0/0
[ISP-GigabitEthernet0/0/0]pppoe-server bind virtual-template 1

用户拨号路由器配置

dialer-ruledialer-rule 1 ip permit
interface Dialer1link-protocol pppppp chap user huaweippp chap password cipher %$%$gu>xPdzPz>"FWUHp:EdW,"%o%$%$ppp pap local-user huawei password cipher %$%$0VL)HZ/u8~H>]sNN#yiY,"K\%$%$ip address ppp-negotiatedialer user HUAWEIdialer bundle 1dialer-group 1nat outbound 3000
acl number 3000  rule 100 permit ip 
interface GigabitEthernet0/0/0pppoe-client dial-bundle-number 1 

查看是否拨上号

[jiucai]display ip interface brief  
Interface                         IP Address/Mask      Physical   Protocol  
Dialer1                           100.64.254.254/32    up         up(s)     
GigabitEthernet0/0/0              unassigned           up         down      [jiucai]ping 100.64.254.1PING 100.64.254.1: 56  data bytes, press CTRL_C to breakReply from 100.64.254.1: bytes=56 Sequence=1 ttl=255 time=80 msReply from 100.64.254.1: bytes=56 Sequence=2 ttl=255 time=50 msReply from 100.64.254.1: bytes=56 Sequence=3 ttl=255 time=20 msReply from 100.64.254.1: bytes=56 Sequence=4 ttl=255 time=30 ms--- 100.64.254.1 ping statistics ---4 packet(s) transmitted4 packet(s) received0.00% packet lossround-trip min/avg/max = 20/45/80 ms    [jiucai]display dialer interface Dialer 1
Dial Interface:Dialer1Dialer Timers(Secs):Auto-dial:300    Compete:20    Enable:5Idle:120    Wait-for-Carrier:60[jiucai]display interface Dialer 1
Dialer1 current state : UP
Line protocol current state : UP (spoofing)
Description:HUAWEI, AR Series, Dialer1 Interface
Route Port,The Maximum Transmit Unit is 1500, Hold timer is 10(sec)
Internet Address is negotiated, 100.64.254.254/32
Link layer protocol is PPP
LCP initial
Physical is Dialer
Current system time: 2023-08-18 14:48:11-08:00Last 300 seconds input rate 0 bits/sec, 0 packets/secLast 300 seconds output rate 0 bits/sec, 0 packets/secRealtime 0 seconds input rate 0 bits/sec, 0 packets/secRealtime 0 seconds output rate 0 bits/sec, 0 packets/secInput: 0 bytesOutput:0 bytesInput bandwidth utilization  :    0%Output bandwidth utilization :    0%
Bound to Dialer1:0:
Dialer1:0 current state : UP ,
Line protocol current state : UPLink layer protocol is PPP
LCP opened, IPCP opened
Packets statistics:Input packets:0,  0 bytesOutput packets:4, 336 bytesFCS error packets:0Address error packets:0Control field control error packets:0

是否看不懂？ 看不懂就对了，只是记录一下命令。至于所有原理，等想写了再写