From: Digital Yemeni (digital.yemeni@gmail.com)
Date: Sat Jul 28 2007 - 04:17:37 ART
How can that be?! Didn't the prompt you that you you can't configure
overlapping IPs? Or you're using Juniper router? :-)
On 7/28/07, CCIE 19999 <ccie@iprimus.com.au> wrote:
>
> Nagendra,
>
> At this point, the pings would fail, because R1 alternates the reply to
> two
> different sub-interfaces. Go ahead and add these interfaces to OSPF
> point-to0multipoint interfaces, and this will create 2 point to point
> links.
> One between R1 and R4 and the other between R1 and R2 with host routes in
> R1. Now if you ping, you will not see any failed pings.
>
> HTH,
> Shine
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
> nagendra kumar
> Sent: Friday, 27 July 2007 7:51 PM
> To: ccielab@groupstudy.com
> Subject: Frame-relay subinterface with same subnet
>
> Hi All,
>
> R1
> (172.16.124.1/24) - DLCI 104 | (172.16.124.3/24) - DLCI 102
> |
> R4---------FRSW-----------R2
> (172.16.124.2/24) - DLCI 201
> (172.16.124.4/24) - DLCI 401
>
> In the above mentioned topology, I have to configure 2 sub interface in
> R1 one to R4 and other to R2 with ip addr from same subnet. The solution
> seems to have configured with point-to-point subinterface in R1 physical
> interface in other routers.
>
> But when I try it in my setup, I am missing alternate packets. I have
> copied the configs below. Can some one throw more lights on how to solve
> this issue.
>
> Configuration:
> ===========
> R1#sh run int s5/0.101
> Building configuration...
>
> Current configuration : 120 bytes
> !
> interface Serial5/0.101 point-to-point
> ip address 172.16.124.1 255.255.255.0
> frame-relay interface-dlci 104
> end
>
> R1#sh run int s5/0.102
> Building configuration...
>
> Current configuration : 120 bytes
> !
> interface Serial5/0.102 point-to-point
> ip address 172.16.124.3 255.255.255.0
> frame-relay interface-dlci 102
> end
>
> R1#sh fram pvc 104 | inc STAT
> DLCI = 104, DLCI USAGE = LOCAL, PVC STATUS = ACTIVE, INTERFACE =
> Serial5/0.101
> R1#sh fram pvc 102 | inc STAT
> DLCI = 102, DLCI USAGE = LOCAL, PVC STATUS = ACTIVE, INTERFACE =
> Serial5/0.102
> R1#ping 172.16.124.4
>
> Type escape sequence to abort.
> Sending 5, 100-byte ICMP Echos to 172.16.124.4, timeout is 2 seconds:
> !.!.!
> Success rate is 60 percent (3/5), round-trip min/avg/max = 40/40/40 ms
> R1#
> R1#sh fram map
> Serial5/0.101 (up): point-to-point dlci, dlci 104(0x68,0x1880),
> broadcast
> status defined, active
> Serial5/0.102 (up): point-to-point dlci, dlci 102(0x66,0x1860),
> broadcast
> status defined, active
> R1#
>
> R4#sh run int s5/0
> Building configuration...
>
> Current configuration : 335 bytes
> !
> interface Serial5/0
> ip address 172.16.124.4 255.255.255.0
> encapsulation frame-relay
> serial restart-delay 0
> no dce-terminal-timing-enable
> frame-relay map ip 172.16.124.1 401 broadcast
> no frame-relay inverse-arp IP 402
> no frame-relay inverse-arp IP 403
> no frame-relay inverse-arp IP 405
> no frame-relay inverse-arp IP 502
> end
>
> R4#sh fram pvc | inc 401
> DLCI = 401, DLCI USAGE = LOCAL, PVC STATUS = ACTIVE, INTERFACE =
> Serial5/0
> R4#sh fram map
> Serial5/0 (up): ip 172.16.124.1 dlci 401(0x191,0x6410), static,
> broadcast,
> CISCO, status defined, active
> R4#
>
> R2#
> R2#sh run int s5/0
> Building configuration...
>
> Current configuration : 300 bytes
> !
> interface Serial5/0
> ip address 172.16.124.2 255.255.255.0
> encapsulation frame-relay
> serial restart-delay 0
> no dce-terminal-timing-enable
> frame-relay map ip 172.16.124.3 201 broadcast
> no frame-relay inverse-arp IP 203
> no frame-relay inverse-arp IP 204
> no frame-relay inverse-arp IP 213
> end
>
> R2#sh fram pvc | inc 201
> DLCI = 201, DLCI USAGE = LOCAL, PVC STATUS = ACTIVE, INTERFACE =
> Serial5/0
> R2#sh fram map
> Serial4/3 (up): ip 172.16.25.5 dlci 205(0xCD,0x30D0), dynamic,
> broadcast,
> CISCO, status defined, active
> Serial5/0 (up): ip 172.16.124.3 dlci 201(0xC9,0x3090), static,
> broadcast,
> CISCO, status defined, active
> R2#
>
> Am I missing something here?
>
> Regards,
> Nagendra
>
>
>
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-- Best RegardsDigital, CCIEx1 (4 more to go! a 10 years project! SP in progress...)
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