PPPoE Configuration on Cisco Devices and Dhcp Configuration

R19

interface Dialer1

ip address negotiated

encapsulation PPP

dialer pool 1

ppp chap hostname Jamesons-R19

ppp chap password 0 CCIE

ppp ipcp route default

no shut

!

interface ethernet0/0

 pppoe enable group global

 pppoe-client dial-pool-number 1

 no shutdown

Client(config)#interface fa 0/0
Client(config-if)#pppoe enable group Cisco
Client(config-if)#pppoe-client dial-pool-number 22
Client(config-if)#no ip addr
Client(config-if)#no shutdown

Client(config)#interface dialer 5
Client(config-if)#mtu 1492
Client(config-if)#encapsulation ppp
Client(config-if)#dialer pool 22
Client(config-if)#ip address dhcp
Client(config-if)#ppp authentication pap callin
Client(config-if)#ppp pap sent-username Client password nexus

ISP

username Jamesons-R19 password 0 CCIE

bba-group pppoe R19

 virtual-template 19

interface Ethernet0/0

 ip address 192.0.2.5 255.255.255.252

 pppoe enable group R19

interface Virtual-Template19

 ip unnumbered Ethernet0/0

 ip mtu 1492

 peer default ip address pool R19

 ppp authentication chap

ip local pool R19 192.0.2.6

Server;

Server(config)#bba-group pppoe Cisco (same like client)
Server(config-bba-group)#virtual-template 1
Server(config-bba-group)#exit

Server(config)#int fa 0/0
Server(config-if)#no ip address
Server(config-if)#no shut
Server(config-if)#pppoe enable group Cisco
Server(config-if)#negotiation auto

Server(config)#interface loopback 0
Server(config-if)#ip address 1.1.1.1 255.255.255.0

Server(config)#interface virtual-template 1
Server(config-if)#mtu 1492
Server(config-if)#ip unnumbered loopback 0

Server(config)#username Client password nexus
Server(config)#int virtual-template 1
Server(config-if)#ppp authentication pap

DHCP Configuration ;

Client# configure terminal
Client(config)# service dhcp

Server(config)#ip dhcp pool POOL
Server(dhcp-config)#network 1.1.1.0 255.255.255.0
Server(dhcp-config)#default-router 1.1.1.1
Server(dhcp-config)#dns-server 8.8.8.8 8.8.4.4
R1(dhcp-config)# domain-name Firewall
Server(config)#ip dhcp excluded-address 1.1.1.1 1.1.1.5

[Server(config)#int virtual-template 1
Server(config-if)#peer default ip address dhcp-pool POOL

Or

Server(config)#int virtual-template 1
Server(config-if)#ip helper-address x.x.x.x
Server(config-if)#peer default ip address dhcp]

-------

r70(client)

interface Dialer1
 ip address negotiated
 ip mtu 1492
 encapsulation ppp
 dialer pool 1
 ppp chap hostname R70
 ppp chap password 0 CCIE
 ppp ipcp route default

interface Ethernet0/0
 pppoe enable group global
 pppoe-client dial-pool-number 1

 r8 (server)


username R70 password 0 CCIE


 bba-group pppoe R70
 virtual-template 1

 interface Ethernet0/2
 ip address 201.99.70.1 255.255.255.252
 pppoe enable group R70

 interface Virtual-Template1
 ip unnumbered Ethernet0/2
 ip mtu 1492
 peer default ip address pool R70
 ppp authentication chap

 ip local pool R70 201.99.70.2