RE: PPP over Ethernet

From: simon hart (simon.hart@btinternet.com)
Date: Wed Jun 01 2005 - 14:36:44 GMT-3


Hi Tim,

The configuration is different for each end, effectively one end calls the
other. This as you can see is different from PPP over F/R

So you need on the distant end (R4) the following config

interface e0/1
pppoe enable
pppoe-client dial-pool 1

Interface Dialer 1
ip address 137.1.4.4 255.255.255.0
dialer pool 1
encapsulation ppp

Also you will need encapsulation ppp on your Virtual Template on R3

HTH

Simon

-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
ccie2be
Sent: 01 June 2005 17:23
To: Group Study
Subject: PPP over Ethernet

Hi guys,

Here's the problem:

r3 e0/1 <---------------------------------------> e0/1 R4
      ^ ^
      | |
  137.1.3.3/24 |
                                                  137.1.4.4

I assume this should work the same way as ppp over f/r which also allows 2
different ip subnets over the same physical link. So, I figured pppoe was
the way to go but this isn't working so maybe pppoe isn't the way to do
this. Any thoughts on this approach are welcomed.

I configured pppoe exactly as shown on the Doc-cd.

Here's the config from 1 side. The other side is the same except for ip
address:

vpdn enable
!
vpdn-group 1
 accept-dialin
  protocol pppoe
  virtual-template 1
 pppoe limit per-mac 50

interface Ethernet0/1
 no ip address
 half-duplex
 pppoe enable

interface Virtual-Template1
 mtu 1492
 ip address 137.1.3.3 255.255.255.0

sh vpdn

%No active L2TP tunnels

%No active L2F tunnels

%No active PPTP tunnels

%No active PPPoE tunnels

sh ip int brief
Ethernet0/1 unassigned YES unset up
up

Virtual-Access1 unassigned YES unset up
up

Virtual-Template1 137.1.3.3 YES manual down
down

Virtual-Access2 unassigned YES unset down
down

sh ip route
Gateway of last resort is not set

     137.1.0.0/24 is subnetted, 1 subnets
C 137.1.37.0 is directly connected, Ethernet0/0

I get similar output from these show commands on the other side of the link.

I also checked that both ethernet interfaces are connected to the same 3550
and in the same vlan.

Anyone have any ideas?

TIA, Tim



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