Nov82019 by Achmad Mardiansyah2 Comments
Combining 8 ISPs with a single mikrotik device

Combining 8 ISPs with a single mikrotik device

GPON, layer 2, Layer 3, load balancing, PCC
Hello all, this time, we would like to share our project of combining 8 ISPs with a single Mikrotik device. So, our client already subscribes to internet connections from 8 different ISPs, and want to use them to provide internet connections to his customers. The reasons are simple: For availability purposes. If one connection is down, the customer is still able to connect via other links (there are eight connections in total, you know that, right? :-p) To increase capacity and also sharing traffic load among the connections. These mean let say if each link has a 100 Mbps datarate, having 8 of them will result in 800 Mbps in total. Sounds good, right? so this is what we did: configure ONU modems to be in the bridge-mode. The upstream…
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Jan92019 by Achmad MardiansyahNo Comments
Observing the DDOS/probing attack with Mikrotik device

Observing the DDOS/probing attack with Mikrotik device

DDOS attack, firewall, probing attack, security
We got a question from students, how the DDOS attack looks like? are they similar to probing attack? In this article, we will talk about it and monitor the attack with the MikroTik router. In order to observe, we need to set up a network topology that allows us to see all packets that are flowing on the network, by having a central point as the main connection hub, it gives us better observability as inbound and outbound traffic will go through the same place, not scattered through different links. Now, let's talk about the tools we are using. The first tool we can use to monitor the traffic flows is the firewall connection. It has a filter where you can use it to focusing on a particular connection like…
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