[ILUG] NIC and dial-up in same machine

Steffen Higel higels at tcd.ie
Thu Nov 8 12:32:03 GMT 2001


Brendan Halpin wrote:
> What should I be looking at, how should I be thinking?

Think in terms of interfaces. Each interface is connected to the computer
on one end and to different networks on their respective other ends. Each
interface has an IP address... which along with its subnet mask describes
the network that it is connected to.

Your lan interface will probably have its IP address statically assigned.
It will probably be linked to /dev/eth0.

The Dial up interface will be linked to /dev/ppp0, and will probably be
assigned its IP address from the ISP using DHCP.

ppp0 only matters when you are connected up, and will be set as the
route through which you access any ip address not directly on your lan.

You should take a good look at ifconfig, it'll hopefully make the above a
little clearer.

regards,

Steffen

PS. apologies if the above was either above or below your head :-)




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