4/20/2021 0 Comments Find Dhcp Client Id
Network Control Panel In the same control panel, theres a field marked DHCP Client ID (until Dave Hamilton showed me all this stuff earlier today, I had always wondered what that field was for).Sometimes you need to exert a little more control over your network, however, and AirPort Utility makes that possible, too.
Find Dhcp Client Id How To Assign StaticFind Dhcp Client Id Mac Using DHCPThis article will show you how to assign static IP addresses to your Mac using DHCP Reservations and DHCP Client IDs, and how to manage your networks DHCP range.My angle in writing this up is managing my network to properly handle Bitcoin mining devices as I prepare for my MacworldiWorld session on Bitcoins.
Many mining devices not only need a static ID, they need to look for a local proxy server. By assigning a static ID to the Mac running that proxy, you can avoid the headaches that come along with your base station assigning new IP addresses to your network, say after a power outage. Bitcoin mining aside, there are plenty of other reasons to assign reserved IP addresses, so lets get to it. Why Not Just Use a Static IP You could just set a static IP address in your Network preferences. In the screenshot below, I set up an IP address using the Manually setting in Mavericks: Network Control Panel in System Preferences The weakness with this method is that your AirPort base station doesnt know anything about it, and if you pick an address in the DHCP Range of your base station, it could assign the same IP address to another device. You dont want that. Instead, Im going to assign a DHCP Client ID to my Mac and let my base station know about it so that it can then assign the static IP I want based on that Client ID. This is the range of IP addresses your AirPort base station feels like it owns and can use at any given moment. Whenever a device joins your network, the IP address it gets comes from this range. To find out what your base stations DHCP Range is, go to the Network tab. The DHCP Range is specified underneath the Router Mode pulldown menu, as marked in the image below by the red arrow. AirPort Utility - Base Station - Network Tab In this case, my base station had reserved 192.168.1.2 through 192.168.1.200. Thats a huge rangefar more than I could conceivably use. Find Dhcp Client Id Plus An ExtraI could safely edit that down to 20 or 30 addresses for my personal needs, but what I really want is to simply make sure I can safely use everything above 200 for my mining devices, plus an extra IP for my Mac. That will leave me 192.168.1.200 through 192.168.1.254 to use as I see fit. Heres what that looks like after I set it: New Range Reservations Now that I have the range I want, I can assign a specific IP to my Mac, which in this case is 192.168.1.199. In the three screenshots above, theres a block called DHCP Reservations. Click the sign underneath that block, and youll get a popup sheet, as shown in the screenshot below: DHCP Reservations Sheet While you can do this by MAC address, a more human-friendly way to do it is by DHCP Client ID, so choose that in the pulldown menu, as shown above. Note that in the screenshot below, there are fields for both a Description and a Client ID. Personally, I want them both to be the same, but they dont have to match. Im sure theres a reason Apple gave us that option, but lets keep things simple. In this screenshot, I also assigned the IP I want, in this case 192.168.1.199. Making a Client ID. Once youve entered what you want, hit Save, and then Update. Your Mac Now that my base station is set up, I need to set up my Mac. Go back to your Advanced options in the Network control panel in System Preferences and change Manually to Using DHCP, as shown in the screenshot below.
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