Removing BUSY leases from MikroTik DHCP pool

Whenever we’re designing a network, we’re trying to assign at least one continuous block of IP addresses for an automatic client assignment. Using the DHCP server, we can make network administration much easier. We can even use the DHCP server to assign an IP address for the servers in our network.

When the DHCP server spots a previously existing IP address from its DHCP leases pool, it will block that address from further assignment. This mechanism will prevent duplicated IP addresses in the same network segment.

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Custom chains in the Mikrotik Firewall

Every network packet that firewall handles can be input, output or forwarded. In relation to this, we have the three predefined chains that handle the entire network traffic. We make a list of rules that allow or block specific traffic.

Over time, our list can grow. At one point, we may have a list with several hundred rules. Mikrotik routers can have a long list, still to operate without problems. However, each netwrok packet must be respectively compared with each rule in the list until it finds appropriate.

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Watch the network with Mikrotik Netwatch

Whenever you have a network with more than a few devices or more than a couple users, you will need to know more about the network health. Whether you are just an advanced user, system administrator or technical support engineer, knowing the status of all devices inside the network is necessary.

We can use a full-scale network monitoring solution (NMS), like the Mikrotik Dude. However, we can fulfill our goal in a simpler yet effective manner. Mikrotik RouterOS includes some cool features. We can utilize the Netwatch service to check availability of the hosts inside the network.

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