Routing confusion

[M.Sultan]

Hello

we have three routers :

R1 R2 R3 

R1 has network 10.0.0.0 with host 10.1.1.1 at the same time R3 also has the same network 10.0.0.0 with host 10.1.1.1

R2 is also connected with both of above routers and itself has network of 11.0.0.0 with host 11.1.1.1.

Now I want to ping 10.1.1.1 From R2, how R2 decide to forward the traffic to my intended destination host ? while same route same prefix learnt from both routers, how router understand our intended destination ?

No summarization applied

same prefix lenght 

Routed statically or Dynamically.

[Flavio Miranda]

Hi

 If you use static route on router 2, you need to specify which will be the destination. You can add both static routes but you need to use cost to differentiate the destination. 

If you use dynamic routing, it may vary according to protocol behavior but surely one destination will not be installed on the RIP. 

[M.Sultan · Accepted solution]

Please read my question again.

[MHM Cisco World]

if the same Host IP then when you ping and router use equal load with max path 2, both host will receive one ping 
if you try change the Host IP and keep subnet IP you will see that some ping is lost. 
so dont confuse the router use longest match to forward packet, all routers in path forward traffic except the last router which host is direct connect to it can detect if host is reachable or not.

[jeterw]

@M.Sultan How is R2 connecting to both R1 and R3 on the same class A network without getting an error on the connected interfaces? Its possible that the Layer 2 address of each host with IP 10.1.1.1 come into the decision making process for Router 2.