From: Loi, Choon Ho (ChoonHo.Loi@getronics.com)
Date: Thu Jun 02 2005 - 14:07:03 GMT-3
Why can't we use frame-relay inverse-arp in ccie lab exam?
Subject: RE: Frame-relay Problem
In your first config set on R2, you're using the frame-relay
interface-dlci command.
When you do a "debug ip packet" on both sides with the first config, I
bet you'll see things...
R1 will send out the ping just fine. R2 will come up with an
"encapsulation failed" error.
When you do a "show frame map" on R2 you'll see nothing.
With your second config set put in, if you do a "show frame map" you'll
have an entry in there, and therefore things will work. L3 --> L2
mappings are important!
Scott
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Loi, Choon Ho
Sent: Thursday, June 02, 2005 12:34 PM
To: ccielab@groupstudy.com
Subject: Frame-relay Problem
Hi,
Hope someone can explain this to me....
If I have:
r1(multipoint) ------------ r2(physical interface)
If I configure this, r1 and r2 can ping each other.
r1#sh run | b 6/0
interface Serial6/0
no ip address
encapsulation frame-relay
no frame-relay inverse-arp
!
interface Serial6/0.123 multipoint
ip address 172.16.123.1 255.255.255.0
frame-relay map ip 172.16.123.2 102 broadcast frame-relay map ip
172.16.123.3 103 broadcast no frame-relay inverse-arp
r2#sh run | b 1/0
interface Serial1/0
ip address 172.16.123.2 255.255.255.0
encapsulation frame-relay
serial restart-delay 0
frame-relay interface-dlci 201
no frame-relay inverse-arp
If I configure like this, I got no problem in connectivity...
r1#sh run | b 6/0
interface Serial6/0
no ip address
encapsulation frame-relay
no frame-relay inverse-arp
!
interface Serial6/0.123 multipoint
ip address 172.16.123.1 255.255.255.0
frame-relay map ip 172.16.123.2 102 broadcast frame-relay map ip
172.16.123.3 103 broadcast no frame-relay inverse-arp
r2#sh run | b 1/0
interface Serial1/0
ip address 172.16.123.2 255.255.255.0
encapsulation frame-relay
serial restart-delay 0
frame-relay map ip 172.16.123.1 201 broadcast no frame-relay
inverse-arp
What's wrong with the first set?
This archive was generated by hypermail 2.1.4 : Wed Jul 06 2005 - 14:43:40 GMT-3