Network IP change?

Hi there,

Is it possible to monitor an IP change on the network? any applications

Thanks

On Tue, 19 Apr 2005, Java Boy <(E-Mail Removed)> wrote:
> Hi there,
>
> Is it possible to monitor an IP change on the network? any applications

For your own PC or some other random computer on the network?

If you want to know the IP(s) for the computer you are on, check the
output of ifconfig command. If the IP is DHCP assigned, you could
alternately do something from a dhcp client related script (if using
dhcpcd see: man dhcpcd).

If it is some other computer on the network, it depends whether their IP
is DHCP assigned and whether you can find out from the DHCP server what it
assigned for their MAC address (assuming they did not change their MAC).

Other methods get a bit more complicated and still assume that they did
not change their MAC address, unless you have some other way to identify
the computer in question.

David Efflandt wrote:
> On Tue, 19 Apr 2005, Java Boy <(E-Mail Removed)>
wrote:
> > Hi there,
> >
> > Is it possible to monitor an IP change on the network? any
applications
>
> For your own PC or some other random computer on the network?
>
> If you want to know the IP(s) for the computer you are on, check the
> output of ifconfig command. If the IP is DHCP assigned, you could
> alternately do something from a dhcp client related script (if using
> dhcpcd see: man dhcpcd).
>
> If it is some other computer on the network, it depends whether their
IP
> is DHCP assigned and whether you can find out from the DHCP server
what it
> assigned for their MAC address (assuming they did not change their
MAC).
>
> Other methods get a bit more complicated and still assume that they
did
> not change their MAC address, unless you have some other way to
identify
> the computer in question.

$ man arpwatch