PPPoE

Question 1

When configuring PPPoE which two interfaces on a router are configured?

Answer 1

• dialer interface
• an physical ethernet interface

Question 2

When configuring PPPoE what should the MTU be set at and why?

Answer 2

mtu 1492 to make room for PPPoE to add its own 8-byte header

Question 3

What are the 6 commands would go on a dialer interface with chap enabled?

Answer 3

• interface dialer1
  
  • ip address negotiated
  • mtu 1492
  • encap ppp
  • ppp chap hostname fred
  • ppp chap password barney
  • dialer pool 1

Question 4

What two commands are needed on the physical ethernet interface?

Answer 4

• no ip address
• pppoe-client dial-pool-number 1

Question 5

In PPPoE what encapsulation do each of the two configured interfaces use?

Answer 5

• dialer interface uses ppp
• physical ethernet interface uses pppoe

Question 6

What are 4 good ‘show’ commands to verify PPPoE is working correctly?

Answer 6

• show interfaces dialer 1
• show interfaces vi2
• show interfaces vi2 config
• show pppoe session int gig0/0