Ian,

Had a quick look at your script and I like your approach however I guess this 
only works for Basic Zones as guest IP addresses are not unique in Isolated 
Networks.  You would need to enhance it with Network IDs to work with Isolated 
networks.

Regards

Geoff Higginbottom

D: +44 20 3603 0542 | S: +44 20 3603 0540 | M: +447968161581

geoff.higginbot...@shapeblue.com

-----Original Message-----
From: Ian Young [mailto:i...@duffrecords.com]
Sent: 20 February 2014 00:09
To: users@cloudstack.apache.org
Subject: Re: Change of guest IP address

> >     On 19-Dec-2013, at 3:58 PM, Andrei Mikhailovsky<andrei@...>  wrote:
> >
> >     Do you know if there is an easier way? Like via the api calls or
> > the
cloudmonkey command? Or is it currently
> the only way?
> >
> >     ----- Original Message -----
> >     From: "Jayapal Reddy Uradi"<jayapalreddy.uradi@...>  To:
> "<users@...>
> "<users@...>  Sent: Thursday, 19 December, 2013
> 9:25:05 AM
> >     Subject: Re: Change of guest IP address
> >
> >     Hi,
> >
> >     If your VM is in isolated network please do the following
> >
> >     1. edit the nics table ip4_address column for your instance_id
> > to
new ip.
> >     2. login to the router corresponds to the network and replace
> > old ip
with new ip in below files.
> >
> >     a.  /var/lib/misc/dnsmasq.leases
> >       b.  /etc/dhcphosts.txt
> >     3. restart the dnsmasq in router (service dnsmasq restart) 4. Reboot
> >     the VM or restart the network service in Vm so that VM gets the
> > new
ip from the dhcp.
> >
> >     Thanks,
> >     Jayapal

I put Jayapal's solution into a script for convenience:

http://pastebin.com/7yJtjNQX

Just edit the first group of variables according to your needs and run it like 
this:

set-vm-ip.sh old-address new-address

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