From: Luu Hoang Dung (lhd.ccdzi@gmail.com)
Date: Wed Apr 11 2007 - 14:02:14 ART
Hi Marvin and other guys,
Firstly thank you for your concern.
I have tried to check my process and the result are:
1 - There is only a transparent switch between the
router-to-be-authenticated and the ACS server
2 - When I telnet to port 49 of the ACS server from my PC I got: " could not
open connection to the host on port 49: Connect failed ".
When I telnet to port 49 of the ACS server from my Routers I got:
" Router2#telnet 192.168.1.200 49
Trying 192.168.1.200, 49 ...
% Connection refused by remote host ".
3 - I configure the router to authenticate locally like this:
username cisco password 0 cisco
aaa new-model
!
!
aaa authentication login default local
And the result is successful.
4- I tried to authenticate different routers and the error msg still the
same and I got this for more :
*Mar 1 00:17:48.315: TPLUS(00000004)/0/WRITE: write to 192.168.1.200 failed
with errno 134((ENOTCONN))
*Mar 1 00:17:53.311: TPLUS(00000004)/0/WRITE/62E74248: timed out
5- There isn't any ACL anywhere
What more can be wrong here ?
-----Original Message-----
From: Marvin Greenlee [mailto:marvin@ipexpert.com]
Sent: Wednesday, April 11, 2007 9:08 AM
To: 'CCDesire'; 'Cisco certification'
Subject: RE: Problem with ACS
Are there other devices in the data path between your router and the ACS
server?
Do you get the same response (connection is refused) if you telnet from the
router to the ACS server on TCP port 49 ?
Are you getting this message when you try an authentication from the router
locally (using the 'test aaa' command)?
Do you only get the 'connection refused' when trying to connect to the
router from somewhere else? If only when trying to connect to the router
from somewhere else, is there any configured access-class/ACL blocking
traffic to the router?
Are you able to authenticate to the ACS server from the router using RADIUS?
Marvin Greenlee, CCIE #12237 (R&S, SP, Sec)
Senior Technical Instructor - IPexpert, Inc.
"When Will You Be an IP Expert?"
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
CCDesire
Sent: Tuesday, April 10, 2007 9:37 PM
To: 'Cisco certification'
Subject: Problem with ACS
Dear group,
I have the following error message every time I try to authenticate routers
to the Tacacs+ Server in Cisco Secure ACS:
Connection is refused by remote host
I tried different ways to fix this problem but still unsuccessful.
Router-to-be-authenticated can ping Server, all firewall on server are
closed (ACS with W2K server).
The hostname, the IP and the shared-key for the router is correctly
configured.
This is what I configured about authentication:
Aaa new-model
Aaa authen login default group tacacs local
Tacacs-server host 206.222.152.1 single
Tacacs-server key ventu
Pls help me troubleshoot this problem.
--Internal Virus Database is out-of-date.
Checked by AVG Free Edition.
Version: 7.5.446 / Virus Database: 268.18.17/731 - Release Date: 3/23/2007
3:27 PM
This archive was generated by hypermail 2.1.4 : Tue May 01 2007 - 08:28:35 ART