RE: PPP over Ethernet

From: ccie2be (ccie2be@nyc.rr.com)
Date: Wed Jun 01 2005 - 14:13:38 GMT-3


Hi John,
 
I don't have a dsl modem with which to test this. And, even if I did, I
wouldn't know how to do that.
 
Both routers are connected to the same 3550 in vlan 34.
 
This problem is from IE Vol II, lab 8.
 
Here's the 3550 output for vlan 34.
 
SW2(config)#do sh cdp nei
Capability Codes: R - Router, T - Trans Bridge, B - Source Route Bridge
                  S - Switch, H - Host, I - IGMP, r - Repeater, P - Phone
 
Device ID Local Intrfce Holdtme Capability Platform Port ID
R3 Fas 0/8 177 R 2611 Eth 0/1
R4 Fas 0/4 144 R 2611 Eth 0/1
 
SW2(config)#do sh vlan bri
 
VLAN Name Status Ports
---- -------------------------------- ---------
-------------------------------
34 VLAN0034 active Fa0/4, Fa0/8
 
I also rebooted the routers just in case this was one of those things that
don't work if things weren't configured in the correct order.
 
Thanks, Tim
 
  _____

From: john matijevic [mailto:john.matijevic@gmail.com]
Sent: Wednesday, June 01, 2005 1:02 PM
To: ccie2be
Cc: Group Study
Subject: Re: PPP over Ethernet
 
Hello Tim,
Have you tried testing this with an actual DSL modem? You may want to test
one side with an DSL modem, configured with pppoe, than on other side have
your router.
Sincerely,
John

 
On 6/1/05, ccie2be <ccie2be@nyc.rr.com> wrote:
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 <http://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



This archive was generated by hypermail 2.1.4 : Wed Jul 06 2005 - 14:43:40 GMT-3