thanks for reply what i meant to ask is if we configure ip pim accept-rp on any router (from leaf router to RP) i believe we must also add auto rp groups if we are relying on auto rp.
ip pim accept-rp auto-rp ALLOWED explanation here : ALLOWED is a standard that have all valid groups that for which he can accept a ( *,G ) join As we know routers first join auto rp group ie they join 224.0.1.40 or in other words they send *,224.0.1.40 join. on reception of ,*G join which is not present in ALLOWED acl , the routers drops the request , hence downstream routers will not be able to join 224.0.1.240 when you use sparse only mode on pim interface , you are left with two choices use " ip pim auto rp listener " command or have a static rp for auto rp groups..... on later case if you use ip pim accept-rp command , ensure that you have auto rp groups added in the acl .................this is what i want to confirm ... On Mon, May 13, 2013 at 11:13 AM, Saleh Batouq <[email protected]>wrote: > I understand from your question is that you need to only use the SHARED > TREE (*,G) and not to build the SOURCE BASED TREE (S,G) so you have only > two options. > 1. ip pim spt-threshold infinity ACL . where the ACL is a standard acl > that specify the Groups. > 2. biderectional pim. Enabled in your network. > On May 13, 2013 10:04 AM, "Imran Ali" <[email protected]> wrote: > >> hi all >> >> guys if we are using auto rp , and let say task suggest we allow >> only >> *,G joins only for active groups. >> >> do we need to allow auto rp groups in accept rp ? >> >> ip pim accept-rp auto ALLOWED >> >> ip access-list ALLOWED >> permit 224.0.1.40 >> permit 224.0.1.39 >> permit 224.1.1.1 >> _______________________________________________ >> 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 >> > _______________________________________________ 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
