Questions tagged [pppoe]

For questions about PPPoE (Point-to-Point Protocol over Ethernet), which provides a method to connect two PPP nodes by encapsulating PPP frames inside Ethernet frames.

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37
votes
3answers
109k views

What is the difference between MSS and MTU?

I'm confused as to the difference between maximum segment size and a maximum transmission unit. Can someone please explain in relation to layers 2 and 3? If I had a packet of 800 bytes in the ...
7
votes
3answers
3k views

Broken PPPoE Config

We have been struggling with this for a few weeks now. CISCO 3825 (15.1 IOS) with properly established PPPoE (ie can ping the net from inside the cli). The problem we are having is that the client's ...
6
votes
2answers
2k views

PPPoE with NAT configuration broken

We are trying to replace our existing router with a newly purchased Cisco router: GigabitEthernet0/0: PPPoE GigabitEthernet0/1: 192.168.2.1 The PPPoE is getting established perfectly, and I can ping ...
2
votes
1answer
538 views

PPPOE Config not working

I have a Cisco 881-W router with Cisco IOS C880 Version 12.4(24)T5. For some reason I can't seem to get an IP on the Dialer. I'm probably doing something stupid wrong. Interface IP-...
1
vote
1answer
3k views

How does PPPOE bridging work?

How does the authentication take place in a pppoe bridge setup assuming I have a bridge modem and a router that is capable of maintaining a bridge connection both connected to an un-managed switch? ...