[CentOS] Finding DHCP IP of guest system

Mon Jul 19 18:09:32 UTC 2010
David Dyer-Bennet <dd-b at dd-b.net>

On Sun, July 18, 2010 20:54, Kahlil Hodgson wrote:
> On 18/07/10 12:04, David Dyer-Bennet wrote:
>>> An alternative, if you have some control over the DHCP server, might be
>>> to enforce a mapping of MAC addresses to IPs.  You can pretty much set
>>> you guest MAC addresses to whatever you want so long as they don't
>>> conflict with anything else.
>> In the long run, they'll be static; but at the moment the permanent IPs
>> haven't been assigned, and I'm just letting them pick something up via
>> corporate DHCP (to avoid conflicting with anything else on the network).
>>   It's at this early experimental stage that it'd be handy to find out
>> externally what they ended up being.
> As a quick hack, while you experiment, you could just get the guest to
> send you an email on boot with its current IP.  Say, by putting the
> following at the end of your /etc/rc.local
> /sbin/ip ad | /bin/mailx -s "IP details for `hostname`" <emailaddr>

Good hack, should have thought of that!  Thanks.
David Dyer-Bennet, dd-b at dd-b.net; http://dd-b.net/
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