I have a satellite network which needs to be fully meshed. What is the best protocol to use for this, OSPF? I need this so I can decrease the delays between the remote sites to a single hop. Instead of a double hop via the HUB site. The network will consist 1 hub(gateway) site and 3 remote sites.
For a network that size (3 routers) and assuming that the number of routes is small, any protocol should work just fine. OSPF (or any link state protocol) would definetly fit because it has low overhead (no periodic advertisements) and most likely you want to reduce the control traffic on the satellite links while at the same time increasing convergence.
The network is setup so that when remote transmits all the sites receive this. How do I configure the router (with ospf) that only the remote which the packets are meant for intercept these packets.Or does OSPF do this without any extra config.
If you have ALL Cisco routers, then EIGRP is a better protocol for a full mesh. In order to control the source to destination traffic you must design the network with the appropriate IP address scheme => summarization, subnets, etc. You need to provide more information on your IP address situation for a better answer.
OSPF or EIGRP would either work for this situation.... Routing protocols are designed to forward the packets to the correct location in the network, in this case, the remote where the host the traffic is destined to is located. So, you shouldn't need any additional configuration beyond a routing protocol to get what you want.
I think EIGRP will be more helpful to you it has more intelligent for calculating metrics and so best path. in this scenario if your links are not that much reliable then you can try EIGRP . The best facility of the EIRGP is you can redefine all timers for your network.
But be care full EIGRP is Cisco proprietary protocol.
The simplest way to this is by putting static floating routes in router you achieve results with this also in this type of very small network
Your another question about the broadcast & uni-cast manipulation about the router ---the router will take care off all this issues and there is no any need to configure.
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