5.6.2. Dynamic Routing Protocols

Dynamic routing protocols are used to signal which networks are currently connected to each of the routers. Routers communicate using routing protocols. UserGate updates the kernel routing table in accordance with the information it receives from the neighboring routers.

Dynamic routing does not change how the kernel performs routing at the IP layer. The kernel keeps looking up routes to hosts and networks as well as default routes in its routing table. The only thing that changes is how routes are managed in the routing table: instead of the manual method, they are added and removed dynamically.


If static gateways are configured in the system, the default routes obtained using dynamic routing protocols are ignored.

UserGate supports three dynamic routing protocols: OSPF, BGP, and RIP.