Add many individual IPs quickly?
 

We have quite a few SEO clients who require multiple IPs which are all from different class c allocations. (10 - 50 IPs) used for projects lasting weeks to months at a time.

Since we don't have connected IPs in ranges we can't use the range scripts but I don't know of a way to easily add a long list of individual IPs. These are CentOS servers, by the way.

Anyone have a bash script handy or know of an easy way other than manually adding them one at a time?

Adding them to what?

IP aliasing?