From: nagendra kumar (nagendranainar@yahoo.co.in)
Date: Sat Jul 28 2007 - 05:01:20 ART
HI Shine and All,
Thanks for your response. I will try it the way you mentioned and will let you know how it goes.
Thanks again,
Nagendra
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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