By default Mikrotik use the following LAN subnet, 192.168.88.0/24 with the gateway IP being 192.168.88.1.

For this example the Mikrotik’s subnet is being changed to 10.0.0.0/24 with a gateway IP of 10.0.0.1.

There are six items that will be updated.

  • Add the local address to the Mikrotik’s Bridge-Local
  • Add the new IP range to the Mikrotik’s Pool
  • Add the new address to the DHCP Network
  • Change the DHCP Server to use the new Address Pool
  • Change the DNS Static address
  • Add the new address to the IP Service List’s Available From address.

Add the Local Address

  1. Open Winbox and go to IP
  2. Go to Addresses
  3. In the Address List window, click on the Blue Plus Sign to add
  4. In the New Address window, select Address to type in the new address
  5. Type in the new address: 10.0.0.1/24
  6. Select the Bridge-Local Interface
  7. Click OK
  8. The new address now appears in the Address List

Add the New IP Range

  1. Go to IP
  2. Go to Pool
  3. In the IP Pool window, click on the Blue Plus Sign to add
  4. Enter in a Name (e.g.: cust-pool)
  5. Enter in the address pool range (e.g.: 10.0.0.10-10.0.0.99)
  6. Click OK
  7. The new IP Pool now appears in the IP Pool list

Add the New Address to the DHCP Network

  1. Go to IP
  2. Go to DHCP Server
  3. In the DHCP Server window, click on the Blue Plus Sign to add
  4. Enter in the Address (e.g.: 10.0.0.0/24)
  5. Enter in the Gateway (e.g.: 10.0.0.1)
  6. Enter in the DNS Servers (e.g.: 10.0.0.1)
  7. Click OK
  8. The new netwoeks will now appear in the DHCP Server Networks list

Change the DHCP Pool

  1. From the same DHCP Server, double click on "default" to change the Address Pool
  2. Go to the Address Pool drop down menu and select the pool that was just created (e.g.: cust-pool)
  3. Click OK
  4. The new Address Pool is now selected for the DHCP server

Change tge DNS Static Address

  1. Go to IP
  2. Go to DNS
  3. From the DNS Settings window, click on Static
  4. Select the default DNS Static entry by double clicking the entry
  5. Change the address to the new Gateway IP (e.g.: 10.0.0.1)
  6. Click OK
  7. The new Address will now appear in the DNS Static list

Add the New Available From Address

  1. Go to IP
  2. Go to Services
  3. From the IP Service List window, select the "www" entry by double clicking the entry
  4. Click on the arrows to add a new entry
  5. Enter the new subnet (e.g.: 10.0.0.0/24)
  6. Click OK
  7. The new Available From subnet will now appear on the IP Service List for the www service.

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