Follow

How to find out the network address and netmask of my Mac?

Sometimes you might need to find out the network address or netmask to setup your PBX for CallControl.

Follow these steps to find out the network address and netmask:

1. Open "System Preferences" on your Mac

2. Open the "Network"-panel

3. On the left-hand side choose the uppermost item with a green light beside. In most cases this is "Ethernet" or "Wi-Fi"

4. On the right-hand side you'll find your "IP-Address". Note it.

5. Below you find the Subnet Mask (netmask). Note it.

In 99% of all cases the subnet mask will be 255.255.255.0 or 255.255.0.0. As the IP address is not the network address you need to modify your IP address to become the network address. Follow these steps:

1. If your netmask is 255.255.255.0, then remove the last digits from your IP-address (behind the last dot) and replace it with a 0 (zero). E.g. 192.168.1.45 becomes 192.168.1.0 or 172.16.45.21 becomes 172.16.45.0 or 192.168.2.100 becomes 192.168.2.0

The resulting network address from the screenshot is: 192.168.2.0 and the netmask is 255.255.255.0 (as read directly from the "Subnet Mask" value)

2. If your netmask is 255.255.0.0, then replace all digits behind the second dot in the IP-address with 0.0 (zero dot zero). E.g. 192.168.1.45 becomes 192.168.0.0 or 172.16.45.21 becomes 172.16.0.0 or 192.168.2.100 becomes 192.168.0.0

Case 1 will apply to most networks. If case 2 applies to you or you find different values you might want to consider talking to your network administrator. They will provide you with the correct values.

 

0 Comments

Please sign in to leave a comment.
Powered by Zendesk