ping will surely fail ( no routing is used) unless you use NAT on R2 to translate R3 source to R2s interface connecting R1.
Regards, Nandan Mathure On Fri, Jul 27, 2012 at 6:32 PM, Amit Jp <[email protected]> wrote: > no ip routing between routers > > > On Fri, Jul 27, 2012 at 6:21 PM, Nandan Mathure <[email protected]>wrote: > >> Actually it still should not work as the source is unknown unless you are >> advertising it using some IGP or you have static on R1. >> Putting R3 into AS2 will not help much as only change you need on R2 >> (apart from AS #) is next-hop-self for route to be valid and best in R3. >> But problem of source network unknown to R1 still remains. So pings will >> not work. >> If they are working in your case. There is some IGP or static route >> present. >> >> Regards, >> Nandan >> >> >> >> On Fri, Jul 27, 2012 at 6:03 PM, Amit Jp <[email protected]>wrote: >> >>> Hi Nandan, >>> >>> Now if i have Router 3 which is connected to Router 2 in the same AS >>> (AS2) it is able to ping ROuter 1 (AS 1)loopback adress 1.1.1.1 >>> >>> R3---R2---R1 >>> >>> R3 and R2 ---> AS2 >>> R1----> AS 1 >>> >>> >>> On Fri, Jul 27, 2012 at 5:47 PM, Nandan Mathure <[email protected]>wrote: >>> >>>> Hi Amit! >>>> >>>> For the First Part: >>>> >>>> Ping will work as source address of R2 is known to R1 as its connected. >>>> >>>> For the Second Part: >>>> >>>> Ping will not work as source of R3 is unknown to R1. Although you will >>>> see the route as valid and best in R3 , R1 will not have a route back to >>>> the Source i.e R3. >>>> >>>> >>>> Thanks, >>>> Nandan Mathure. >>>> >>>> >>>> >> > _______________________________________________ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com Are you a CCNP or CCIE and looking for a job? Check out www.PlatinumPlacement.com http://onlinestudylist.com/mailman/listinfo/ccie_rs
