Super User is a question and answer site for computer enthusiasts and power users. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I'm currently working with a company and I can only access their web services if I send them my IP number. My computer is currently on a DHCP network. How do I find out which IP I have to give them? I'm running OS X 10.6 with an Ubuntu VM.

share|improve this question
up vote 2 down vote accepted

If the Mac you are using is at home, then you will need to provide your workplace with your external IP address. This is provided by your ISP and is how your computer is known to the world wide web. You can find it by going to

Hope this helps!

DHCP is simply the automated method which your home router uses to assign unique IP addresses to each device connected to your local network.

share|improve this answer
horatio is correct in that your external IP address may not be static, and may change. – Jay_Booney Jan 7 '11 at 19:44
If you are not on a static WAN address, you may be able to set up dyndns ( or similar services) within your internet connection device (router) or computer and provide the company with a name they can resolve back to your current WAN IP address. – Linker3000 Jan 7 '11 at 19:56

You would provide them with the WAN address of the dialup/cable/dsl/fios modem. You would need to log into the modem and look this up. Unless you have asked/paid for a static ip from your provider, it may change at some arbitrary time in the future. If you don't have access to the modem, you need to ask the sys admin who maintians it.

share|improve this answer
This could vary depending on the setup. If the 'modem' and router are separate (as mine are), then the router is where you'd look. – Harper Shelby Jan 7 '11 at 19:57
This is correct. Don't know why I presumed a dual unit. I have had both in the past. – horatio Jan 7 '11 at 21:56

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .