how to figure out the gateway number?

[Andrew Kasza <andrew1024000@yahoo.com>]

I have debian 3.0. I have to change the configuration
of network
(I mean I have to change IP, netmask and so on).

I know my IP address, netmask, broadcast.

Is there a way to figure out the network and gateway
number?

Is it enough to do the following three steps?:
1step 'ifdown --all'
2step
' to change the file /etc/network/interfaces'
3step 'ifup --all'


TIA

Jan

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