Re: how to figure out the gateway number?
Andrew Kasza <andrew1024000@yahoo.com> writes:
> 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?
The network address is your IP address bitwise-AND your netmask.
IP address 18.208.0.22, netmask 255.255.0.0 ==> network 18.208.0.0
IP address 18.101.2.57, netmask 255.255.255.240 ==> network 18.101.2.48
IP address 192.168.7.34, netmask 255.255.255.0 ==> network 192.168.7.0
The gateway address is specific to your network. I'm used to seeing
it being the "first" address in the network (e.g., 18.208.0.1), but
I've also seen mention of a convention where it's the "last" address
(192.168.7.254). In any case, whoever gave you the IP address should
be able to tell you what the default gateway should be.
> Is it enough to do the following three steps?:
> 1step 'ifdown --all'
> 2step ' to change the file /etc/network/interfaces'
> 3step 'ifup --all'
That should be sufficient, yeah. If I were doing it I'd just down/up
the one interface I was changing (likely eth0).
--
David Maze dmaze@debian.org http://people.debian.org/~dmaze/
"Theoretical politics is interesting. Politicking should be illegal."
-- Abra Mitchell
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