PPPoE configuration and notes

here is my default config for PPPoE between R6 and R7 back to back over ethernet interface F0/1

NOTES: need to set mtu on int dialer1 (client side) to match 1492 of interface Virtual-Template1 (server side) or in the case of OSPF set mtu ignore on interfaces
NOTES: key that is not in documentation is to set ‘encapsulation ppp’ on dialer interface on client side
NOTES: IP address can be assinged with IPCP local pool, or DHCP pool just have to create local pool or dhcp pool on server side
NOTES: also can use standard PPP CHAP/PAP authentication on PPPoE link as well

Cisco DOCCD link

Cisco Support Forms link

R7:
interface FastEthernet0/1
no ip address
duplex auto
speed auto
pppoe enable
pppoe-client dial-pool-number 1
!
interface Dialer1
ip address negotiated
encapsulation ppp
ip ospf mtu-ignore
dialer pool 1
dialer-group 1

R6:
bba-group pppoe global
virtual-template 1
!
interface Loopback67
ip address 67.6.7.6 255.255.255.0
!
interface FastEthernet0/1
no ip address
duplex auto
speed auto
pppoe enable group global
!
interface Virtual-Template1
ip unnumbered Loopback67
peer default ip address pool R7
ip ospf mtu-ignore

!
ip local pool R7 67.6.7.7

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