Change WAN interface IP / ISP Change Over

Created by Mark Jones, Modified on Fri, 2 Jun, 2023 at 2:43 PM by Mark Jones

TABLE OF CONTENTS

Introduction
Change IP Details

Introduction

IP addresses can be written over in Captive Mikrotik Config, however as with all remote wan interface updates there is some risk attached - such as incorrect configuration being pushed or connectivity issues.

The following list will help installation partners prepare for an IP migration and minimise the risk of service downtime during the change.

Is the Mikrotik WAN interface addressed publicly or privately (behind NAT).
Do I have backup access in case things go wrong (Via gateway 2 or secondary IP)
Can i configure an empty port?
Do I use Conference Tool or MDU features?
Do I use a connector?
Do I use 802.1x or net AUTH plugins
Do I use load balancing
Do I have any other services, accessed outside -> in via the old IP

Change IP Details

The following table lists the steps for an IP change, writing over a existing IP and assumes that plugin services used the OLD IP.

If gateway is behind NAT, skip to #5.

If a new interface is used (rather than updating an existing one), skip steps #3 - 4 and create a new WAN interface in Asset -> Network -> Networks

Item	Description
1	Locate the Asset in captive
2	Publish, and check sync is good via Mikrotik onboard log. Ensure alternative access is available.
2	go to Asset -> Network -> Networks
3	Click on the desired WAN interface
4	Change IP address, Subnet Mask and Default Gateway, Save.
5	go to Asset -> Network -> Load Balancing
6	if used, adjust as necessary for new bandwidth. Save
7	Publish
8	Confirm remote logins are still good and guests HSIA is running as expected.
9	Asset table -> WLC -> General -> Connection details
10	WLC - Change IP address, save, confirm connectivity in browser.
11	Top Menu -> Settings -> Plugins
12	Connector -> Update IP and save
13	802.1x -> Update IP and save
12	Network Authentication -> Update IP and save