====== Change Ubiquiti EdgeRouter IP Address ======

The following steps can be followed to update the public (WAN) IP address and gateway on a Ubiquiti EdgeRouter that has already been configured for service. 

===== Instructions =====

  - Plug a computer in to port eth1, eth2, eth3, or eth4 on the front of the EdgeRouter and wait until you receive an IP address
    - **NOTE:** You should not be connected to any wireless networks as it may prevent you from accessing the EdgeRouter
    - The IP address you receive should be in the 192.168.50.x range
  - Open a web browser and go to https://192.168.50.1:8443. Accept any certificate errors and then log in with the username and password
  - Click ''System'' tab at the bottom of the page
  - Update the Gateway to the new Gateway address
  - Update the Name Servers to the new Name Server addresses
    - Leave 8.8.8.8 or 8.8.4.4 if those are listed. All other name server addresses should be updated or removed \\ {{:images:edgerouter-ip-1.png?direct&200|}}
  - Scroll down and click ''Save''
  - Minimize the ''System'' tab if it is still visible so that you are back on the main page
  - Select the ''Actions'' dropdown next to interface ''eth0'' and click ''Config'' \\ {{:images:edgerouter-ip-2.png?direct&200|}}
  - Update the IP address to the new IP
    - **NOTE:** The IP address you enter must include the full IP, followed by a forward slash and then the CIDR notation for the subnet mask. Use the table below for examples and common CIDR notations. \\ {{:images:edgerouter-ip-3.png?direct&200|}}
  - Click ''Save''. Wait 60 seconds and then verify the internet is working as expected.

==== CIDR Notation ====

^ Subnet Mask      ^ CIDR Prefix  ^ Example CIDR Notation  ^
| 255.255.255.252  | /30          | 1.2.3.4/30             |
| 255.255.255.248  | /29          | 1.2.3.4/29             |
| 255.255.255.240  | /28          | 1.2.3.4/28             |
| 255.255.255.224  | /27          | 1.2.3.4/27             |