10-09-2016, 02:23 AM
1
Those questions are not purely exam related, but they are related to some confusion I am having in understanding BGP, any help would be really appreciated!
Now let us assume this scenario;
- Two edge routers (EDGE-R1 & EDGE-R2) that are directly connected through a switch and running IBGP. They are installed after an Edge FW
- Each Router is running external BGP with AS 8888
- EDGE-R1 is neighbor with AS 1111 , EDGE-R2 is neighbor with AS 2222 .. each from a different provider
- Corporate's subnet to be advertised by the routers is ( 1.2.3.0 /24 )
My questions are;
- If both routers are advertising the 1.2.3.0 /24 network, how can I specify on which router I will be reached from the internet users? What would determine whether am reachable through AS 1111 or AS 2222
- Just to confirm, having the Firewall with two default routes, one for each Router would achieve ECMP and therefore equal load balancing correct?
Thank you!
Now let us assume this scenario;
- Two edge routers (EDGE-R1 & EDGE-R2) that are directly connected through a switch and running IBGP. They are installed after an Edge FW
- Each Router is running external BGP with AS 8888
- EDGE-R1 is neighbor with AS 1111 , EDGE-R2 is neighbor with AS 2222 .. each from a different provider
- Corporate's subnet to be advertised by the routers is ( 1.2.3.0 /24 )
My questions are;
- If both routers are advertising the 1.2.3.0 /24 network, how can I specify on which router I will be reached from the internet users? What would determine whether am reachable through AS 1111 or AS 2222
- Just to confirm, having the Firewall with two default routes, one for each Router would achieve ECMP and therefore equal load balancing correct?
Thank you!