The LAN setup is

File Server
RTL8139 LAN card, IP address 10.0.0.3
120 GB Hard Drive, and SAMBA to share the drives contents

Options Server (Two ethernet cards)
Intel Onboard card, 100B, IP adress 10.0.0.2 (disengaged, as I dont use it)
PCI 4 port internal switch (acts as a network card too, RTL8139), IP address
10.0.0.1
56K External modem, which is attached /dev/ttyS0 and a WVDIAL setup to drive
it
DHCPD  which allocates 10.0.0.4 to 10.0.0.10/255.255.255.0 (keeps the two
windows clients, and any guest machines, happy)
IPTables firewall and NAT script ( http://morizot.net/firewall/ ) so that
the server can dish out internet access via the 56k modem

>From the Options Server (10.0.0.1) if I start ppp0 (WVDIAL) and ping my ISPs
DNS server (203.97.33.14) it tries to ping from 10.0.0.1, not
203.isp.dhcp.address and the end result?

Destination host unreachable.
Destination host unreachable.
Destination host unreachable.
etc etc etc ad infinitum.

Now, here's the way I got it to go...  Kinda rudimentary but effective

ifconfig eth0 down
/etc/rc.d/rc.firewall
wvdial
ifconfig eth0 up

This, as you can imagine, is a royal pain in the ass if the modem should get
disconnected while I'm 400+ kms from home, and wife knows little/nothing
about linux to correct the issue...  it's a big toll call talking her
through the many steps...

----- Original Message -----
From: "Volker Kuhlmann" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Thursday, October 23, 2003 9:31 AM
Subject: Re: Networking issue


> > if you've just got an ethernet card 90% of the time, which is attached
to
> > a single closed subnet, and occasionally dial up via a modem, then you
> > really should not assign the default route to your ethernet card. Just
> > don't have one, let pppd sort that out for you.
>
> This is a valid workaround, and is appliccable depending on your LAN
setup.
> For more complex LAN setups it won't work. To do things properly, you'll
> need to fix the problem, and that's your ppp setup.
>
> Volker
>
> --
> Volker Kuhlmann is possibly list0570 with the domain in header
> http://volker.dnsalias.net/ Please do not CC list postings to me.

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