Waleed, Thanks for detailed one .
I guess , since the interface is participating in two logical netwroks (hub). I cant apply ip under the physical . option two is the only way . On Fri, Dec 30, 2011 at 2:01 AM, WaLeEd AlShErIf <[email protected]>wrote: > Hi Imran , > > The inverseARP will not work on an interface unless you have spicified the > IP address command on the interface. > So on the main interface or the multipoint subinterface, once you > enabled frame relay the LMI will works and will get all possible DLCI that > the FR Switch will provide, once you have applied the IP address, the > InverseARP will start to work and map the IP addresses to the DLCIs . > > In order to get rid of the unwanted DLCI mapping ( IP & DLCI ) , there are > two ways you may follow one of them as below : > > 1) On the Main interface use "no frame-relay inverse-arp ip [unwanted > DLCI] " command to prevent the Inverse ARP to work on these DLCIs . // this > way will not required to create a new interfaces > > 2) Remove the "IP address " command from the Main interface --> create > Multipoint subinterface and pick up the wanted DLCI by using command " > frame-relay interface-dlci [ DLCI] " and repeat the command to all wanted > DLCIs and then add the IP address to this subinterface OR do the opposite > of this operation by creating the multipoint subinterface and add the > unwanted DLCIS to this subinterface . > > The concept of the interface to use the InverseARP is if there is a DLCI ( > layer 2 circuit ID ) and IP address on the interface , the inverseARP will > works , so to prevent the interface from using Inverse ARP on a spicific > DLCI you need to remove the "ip address" command from the interface , in > the 2nd way above , I have kept the unwanted DLCIs on an interface without > having the IP address command , so the interface will not allow the > inverseARP to work on them. > > > > Here is a configuration example: > > suppose that the R1, R2 & R3 ( DLCI 102 , 103) are connected and the > unwanted DLCI are to R4 & R5 ( 104, 105 ): > > The first way : > For R1 > R1( config)# interfae s0/0 > R1( config-if)# ip address 10.0.0.1 255.255.255.0 > R1( config-if)# encapsulation frame-relay > R1( config-if)# no frame-relay inverse-arp ip 104 > R1( config-if)# no frame-relay inverse-arp ip 105 > > The 2nd way is: > R1( config)# interfae s0/0 > R1( config-if)# no ip address > R1( config-if)# encapsulation frame-relay > R1( config-if)# end > R1( config)# interfae s0/0.1 multipoint > R1( config-if)#ip address 10.0.0.1 255.255.255.0 > R1( config-if)#frame-relay interface-dlci 102 > R1( config-if)#frame-relay interface-dlci 103 > OR > R1( config)# interfae s0/0 > R1( config-if)# encapsulation frame-relay > R1( config-if)#ip address 10.0.0.1 255.255.255.0 > R1( config-if)# end > R1( config)# interfae s0/0.1 multipoint > R1( config-if)#frame-relay interface-dlci 104 > R1( config-if)#frame-relay interface-dlci 105 > > *PLEASE NOTE* that by the way all the DLCIs that LMI has brought to the > interface are added in the interface database in hidden way , so the > command " frame-relay interface-dlci [DLCI] " has nothing to do with the > InverseARP , it is only pick up the required DLCIS from the hidden > Database and assign then to other interface. > > Good luck in your studies > > Waleed > > *From:* Imran Ali <[email protected]> > *To:* [email protected] > *Sent:* Thursday, December 29, 2011 11:37 PM > *Subject:* [OSL | CCIE_RS] frame relay - inver arp > > Hi all > > > In my senario , i have to achive frame relay mapping through inverse arp . > > however i dont want all the available DLCI's . Only selective DLCI's > which are displayed in diagram should be allowed . > > if i allow inverse arp on physical interface all DLCI's associated with > PVC'S will gain entry in frame relay map table. > > my logic : first encapsulate with ppp to flust all DLCI's > > shut down > > turn frame enacpsulation > selectively disable unwanted dlci's usnin no > frame-relay inverse-arp dlci xyz > apply ip address > > no shut > > > > The above case is actually not feasible in most senario's which requires > ip's from multiple subnet . example same interface but two logical subnets > . > > can i accomplish the same with multipoint interface ? > . > _______________________________________________ > 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://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
