From: Michael Breen (mbreen@xxxxxxxxx)
Date: Sun Jun 02 2002 - 14:22:16 GMT-3
PPPOE gives the ability to connect a network of hosts (your router or host
pcs) over a bridging access device (your isp modem or bridge.) If you were
to connect just the isp bridge/modem to your computer...
ISP------>Bridge------>PC
PPPOE Start--------------------PPPOE Terminated
The PC would terminate the PPPOE tunnel using a PPPOE client of some sort.
This is how most people are using PPPOE to connect to the Internet.
It sounds like you would like to have a bunch of PCs on an internal network
connected to the Internet WITHOUT having to actually run and terminate a
PPPOE client/tunnel. Like this.....
ISP------>Bridge------>Router---------------->Hosts
PPPOE Start------------------->PPPOE Terminated
In this scenario, the PPPOE tunnel would be terminated on the Router's
interface that faces the WAN. So call it what you like, WAN or LAN, the
interface that terminates the PPPOE tunnel would be facing the WAN side. :)
Normally the bridge/modem supplied by the ISP has a WAN port(dsl) and an
Ethernet port. You would connect the WAN port to the ISP and the Ethernet
port to your router. You would have to set the Router up with PPPOE username
and password, and ppp authentication type (pap or chap). Your router would
use these things to authenticate to the ISPs network, pick up an address and
the PPPOE tunnel would then terminate on the outside interface of the
router. All traffic on the internal side would NAT to the outside interface
of the router and traverse the PPPOE tunnel to the Internet.
--MB
-----Original Message-----
From: Tom Young [mailto:gitsyoung@yahoo.co.jp]
Sent: Sunday, June 02, 2002 10:26 AM
To: mbreen@cisco.com
Cc: ccielab@groupstudy.com
Subject: RE: IP address for PPPoE
Sorry for a simple question, in your reply , you said:
> PPPOE will use your WAN port (E0) and will pick up
> an address in one of two ways....
WAN port (E0) ? I think E0 will belong to the LAN port,
according as the definition of WAN port, WAN port should
be a bri, series port, right?
And does the PPPoE could use a bri or seires port for
working?
Thanks
Young
> 1. ISP assigned (DHCP)
> 2. Statically assigned by the ISP
>
> The LAN port will connect to your internal network
> using an internal network
> address space. You will NAT overloading the WAN
> ports address to get access
> to the Internet. No routing protocols needed if you
> only have one address
> space on the LAN side (static and default routes).
>
> --MB
>
> -----Original Message-----
> From: nobody@groupstudy.com
> [mailto:nobody@groupstudy.com]On Behalf Of Tom
> Young
> Sent: Saturday, June 01, 2002 11:49 AM
> To: John Underhill
> Cc: ccielab@groupstudy.com
> Subject: Re: IP address for PPPoE
>
>
> John,
>
> Thank you for reply me so quick. and you said I
> could
> use a static ip address. I want to ask you may I set
> a
> globe address on my e0 port? I think I should get
> the
> address from ISP by negotiation parameter setting,
> right?
> And then , I want to ask if I connect a router
> to ADSL
> modem by PPPoE, which port should I use, the ether
> port or
> the wan port?
>
> Thanks alot
>
> Young
>
>
>
> --- John Underhill <stepnwlf@magma.ca>
> $B$+$i$N%a%C%;!<%8(B
> $B!'(B
> > If you are looking to have all your routers avail
> to
> > the net, I would set
> > the e0 address as static, define it as the global
> > address and use NAT for
> > the conversion. ex
> > ip nat pool mypool 200.1.1.1 200.1.1.1 netmask
> > 255.255.255.0
> > ip nat inside source list 1 pool mypool overload
> > access-list 1 permit 192.168.1.0 0.0.0.255
> >
> >
> > ----- Original Message -----
> > From: "Tom Young" <gitsyoung@yahoo.co.jp>
> > To: <ccielab@groupstudy.com>
> > Sent: Saturday, June 01, 2002 1:15 PM
> > Subject: IP address for PPPoE
> >
> >
> > > HI, everybody
> > >
> > > I am using a router was configed PPPoE
> access
> > the ISP
> > > through ADSL modem, But I don't know the ip
> > address in the
> > > two ether ports.
> > > If I using the e0 to ADSL modem and e1 to LAN.
> > >
> > > 1, e0 will receive a IP address from ISP, by
> > negotiation.
> > > For the e1 I could config private address
> > free,(for
> > > example 192.168.1.254) right?
> > >
> > > 2, Should I do some routing protocol for the
> > routing
> > > between e0 and Lan?
> > >
> > > Thanks alot
> > >
> > > Young
> > >
> > >
This archive was generated by hypermail 2.1.4 : Tue Jul 02 2002 - 08:12:21 GMT-3