PPPoE 실습

 

# R2~R4
router rip
ver 2
no auto
exi

# NAT
int f 0/0
ip add 192.168.1.254 255.255.255.0
no shut
int f 0/1
ip add 1.1.23.2 255.255.255.0
no shut
exi

# R3
int f 0/0
ip add 1.1.34.3 255.255.255.0
no shut
int f 0/1
ip add 1.1.23.3 255.255.255.0
exi

# R4
int lo 1
ip add 11.1.1.254 255.255.255.0
no shut
int f 0/0
ip nat out
int f 0/1
ip nat inside
exi
ip nat inside source static 10.1.1.1. 11.1.1.1
router rip
net 11.0.0.0
exi

# server
int f 0/1
ip add 10.1.1.1 255.255.255.0
no shut
exi
ip route 0.0.0.0 0.0.0.0 10.1.1.254
exi

 

PPPoE를 설정하기 전에 각 router에 위 설정을 넣어준다

 

# R1
conf t
int fa 0/0
no shut
pppoe enable 
pppoe-client dial-pool-number 11
exi
int dialer 1 
mtu 1492
ip add nego
encapsulation ppp   
dialer pool 11
dialer-group 1
ppp authentication chap callin
ppp chap hostname cisco
ppp chap password cisco
exi
ip route 0.0.0.0 0.0.0.0 dialer 1 
dialer-list 1 protocol ip permit

# NAT
vpdn enable # dial network 활성화 
vpdn-group 1
accept-dialin
protocol pppoe
virtual-template 1  
exi
int fa 0/0
no shut
pppoe enable
exi
int virtual-template 1
mtu 1492   # pppoe 헤더 8 byte 
ip unnumber fa 0/0
peer default ip address pool cisco
exi
ip local pool cisco 192.168.1.200 192.168.1.250
int fa 0/1
no shut
ip nat outside
exi
int virtual-template 1
ip nat inside 
exi
access-list 10 permit 192.168.1.0 0.0.0.255
ip nat inside source list 10 int fa 0/1
username cisco password cisco

 

 

 

nat에 설정한 pool 범위에서 ip를 받아오는 것을 확인 가능