Re: HELP: NAT/Masquerading broken with 2.6.11 + pppoe (long)

From: Albrecht Dreß (albrecht.dress_at_arcor.de)
Date: 05/16/05 

Date: Mon, 16 May 2005 10:33:53 +0200

Am Mon, 16 May 2005 00:15:45 +0200 schrieb Horst Knobloch:
> I would try to use for the pppoe connection a dedicated
> eth-NIC to which the DSL modem is directly connected.
>
> IIRC NICs with an IP address assigned are supposed to
> cause problems when running PPPoE over it. I can't
> remember the exact reasons, though and I had even
> such a setup successfully running a long time ago.

Well, this would of course be a possibility... However, IMHO Linux ought
to be able to handle this setup - as I said before, it *does* work
perfectly with MacOS 10.3 (which is built on top of a BSD system, but that
shouldn't make a big difference).

> However I would give it a try with a dedicated NIC. They are very cheap
> nowadays and such a setup is smarter anyway, since the broadcasts of
> your private LAN are not bridged by DSL modem towards your ISP.

Hmmm, if I understand the setup correctly, the DSL modem is supposed to
catch only the packets directed to it, right (i.e the ppp0 interface)? So
it should be possible to block all broadcasts (and other unwanted packets)
coming from and sent to the isp using a proper firewall (iptables, ipfw)
setup?

Cheers, Albrecht. 

-- 
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 Albrecht Dreß  -  Johanna-Kirchner-Straße 13  -  D-53123 Bonn (Germany)
       Phone (+49) 228 6199571  -  mailto:albrecht.dress@arcor.de
   GnuPG public key:  http://home.arcor.de/dralbrecht.dress/pubkey.asc
_________________________________________________________________________

Relevant Pages

  • Re: Undoing the damage caused by the CEICW
    ... Kill the PPPOE connection in the server. ... I do have a SMC700ABR between the box and the DSL modem. ... Since that was unsupported, and this setup was working, I ...
    (microsoft.public.windows.server.sbs)
  • Unable to create a PPPoE connection in XP
    ... I'm unable to create a PPPoE connection using Windows so I can use my ... My DSL modem was working fine up to a week ago and then it ... My ISP told me I have a non-uft modem that has to have ...
    (microsoft.public.windowsxp.general)
  • Cant create a PPPoE connection
    ... I'm unable to create a PPPoE connection using Windows so I can use my DSL ... My DSL modem was working fine up to a week ago and then it quit, ... My ISP has no software to do this as Windows XP is ...
    (microsoft.public.windows.inetexplorer.ie6.browser)
  • Unable to create a PPPoE connection in XP
    ... I'm unable to create a PPPoE connection using Windows so I can use my ... My DSL modem was working fine up to a week ago and then it ... My ISP told me I have a non-uft modem that has to have ...
    (microsoft.public.windowsxp.general)
  • Re: Capabilities
    ... I was wondering if it's possible to setup a dsl modem on this OS and configure a pppoe connection to an intranet. ...
    (microsoft.public.windowsxp.embedded)