¶ Dynamic Routing
Dynamic Routing daemon use OSPF aka Open Shortest Path First which manages routing tables.
OSPF is an interior gateway protocol designed to communicate routing tables between several gateways.
In this case, every router has an understanding of the complete network topology.
It is a feature available with Artica 4.30.00000 Service Pack 221
Response to changes in the network is faster. Furthermore, failure detection is improved.
To understand benefits of this feature, here it is an small example:
1) First, we have a main router ( using Artica as example but it could be CISCO, Juniper, Fortinet… ).
This router is the main gateway and is populated with network routing information of the LAN.
In our small network we have only one that is 192.168.1.0/24
2) Second, we have an ESXI hypervisor with 2 separate networks.
But, regularly, networks are changed, deleted or new networks are added.
During tests and installations, our technicians create networks in the virtual environment and want virtual machines to be available from the production network.
It is tedious to connect to the router and modify routing information each changes in order to coordinate the production and test networks.
Also, making changes to the main router requires a dedicated person who is sometimes unavailable.
A way is to make changes dynamically and automatically without human interactions.
Gateways installed in the virtual network are able to inform the main router of their presence and different paths to use in order to reach temporary virtual networks.
A network can be divided into sub-areas called areas.
An area is a logical collection of networks, routers and links that have the same area identification.
A gateway within an area must maintain a topology database for the area to which it belongs. The gateway does not have detailed information about the network topology outside its area.
Zones limit the scope of route information distribution.
In our case, we have a named zone 0.0.0.0 (a realm) which allows all routing information exchanges on networks within the 192.168.0.0/16 range
See, how to install the Dynamic Routing feature inside Artica