admin

OSPF Cost Manipulation

OSPF Cost Manipulation ====================== The equation used for cost manipulation in OSPF is :- OSPF Cost=Reference Bandwidth/Interface Bandwidth It simply means that we can manipulate any one of the three parameters to adjust our OSPF cost. First of all we can apply the OSPF cost straight by the “ip ospf cost [1-65535]” to the particular …

OSPF Cost Manipulation Read More »

BGP Reachability

BGP Reachability ================= R1 | |      |       R2—FR CLOUD—R6 | | | R5 Here in the above scenario R1 and R2 both connected to R6 via Frame-relay cloud and OSPF area 0 is running between all of them, and R6 is advertising default route into OSPF domain.R2 is in BGP AS 100,R6 is in …

BGP Reachability Read More »

BGP Filtering

BGP Filtering =========== One of the most important thing in BGP to prevent our own public AS to be used as transit AS for other BGP AS’s. There are several ways to accomplish this as we can also use BGP Communities to accomplish this one simple way that i have found while doing lab today. …

BGP Filtering Read More »

BGP Default Routing

BGP Default Route Origination ============================= We can originate default route to specific BGP neighbor through route bgp [AS No.] neighbor [ip address] default-originate Note:-By doing this the Default route is originated to the BGP peer along with the other routes in the BGP table.If you want to advertise only Default-route then do backup your configuration …

BGP Default Routing Read More »