From: Bob Sinclair (bsinclair@netmasterclass.net)
Date: Wed Jun 22 2005 - 15:43:22 GMT-3
Tim,
Sorry if I missed it, but are you running ILMI? Don't you need to run ILMI to
learn the shared prefix?
Bob Sinclair
CCIE #10427, CCSI 30427, CISSP
www.netmasterclass.net
----- Original Message -----
From: ccie2be
To: Group Study
Sent: Wednesday, June 22, 2005 1:27 PM
Subject: ATM CLIP
Hey guys,
I'm trying to config CLIP where BB1 is the arp-server.
I thought that on the client, R6 in this case, I could configure either the
esi or the nsap address. If I use the ESI address it doesn't work but if I
use the nsap address it does work.
Both the arp client and the arp server are connected to the same ATM
switch.
Why doesn't using the esi address work?
TIA, Tim
Below is some additional info.
This is the debug from BB1 when trying to ping R6.
*Jul 13 05:12:27.339: IP: s=54.1.5.254 (local), d=54.1.5.6, len 100, cef
process
switched
*Jul 13 05:12:27.339: IP: s=54.1.5.254 (local), d=54.1.5.6 (ATM0.5455254),
len 1
00, sending
*Jul 13 05:12:27.339: IP: s=54.1.5.254 (local), d=54.1.5.6 (ATM0.5455254),
len 1
00, encapsulation failed
I checked that the BB1 config copied correctly and here's the relevant
portion:
interface ATM0.5455254 multipoint
description SVC to Rack1bb1 with CLIP, ARP server self
ip address 54.1.5.254 255.255.255.0
ip router isis 1
no ip route-cache
no ip mroute-cache
atm esi-address 000005455254.00
atm arp-server self
I get the same error when pinging from R6 to BB1:
05:58:22: IP: s=54.1.5.6 (local), d=54.1.5.254, len 100, cef process
switched
05:58:22: IP: s=54.1.5.6 (local), d=54.1.5.254 (ATM0), len 100, sending
05:58:22: IP: s=54.1.5.6 (local), d=54.1.5.254 (ATM0), len 100,
encapsulation fa
iled
Here's my R6 config:
interface ATM0
ip address 54.1.5.6 255.255.255.0
pvc 0/5 qsaal
!
pvc 0/16 ilmi
!
atm esi-address 000000054156.00
no atm ilmi-keepalive
atm arp-server nsap 47.00000000000000000000000A.000005455254.00
The only difference between my R6 config and the IE SG is that I used the
esi address instead of the nsap address but shouldn't make any difference
since both BB1 and R6 are using the same ATM switch.
Interestingly, look at the output below:
Map list ATM0.5455254_ATM_ARP : DYNAMIC
arp maps to NSAP 47.00000000000000000000000A.000005455254.00
, connection up, VC 10, VPI 0, VCI 255, ATM0.5455254
ip 54.1.5.254 maps to NSAP 47.00000000000000000000000A.000005455254.00
, broadcast, connection up, VC 12, VPI 0, VCI 257, ATM0.5455254
It appears that BB1 is mapping its own ip address to its nsap address but
there's no dynamic map for R6. I would think there should be.
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This archive was generated by hypermail 2.1.4 : Wed Jul 06 2005 - 14:43:42 GMT-3