From: Todd, Douglas M. (DTODD@PARTNERS.ORG)
Date: Thu Apr 12 2007 - 11:38:36 ART
One last thing:
Having zonealarm running - do you see anything in zonealarms logs? I would
check there and see if you find anything... I think zonealarm is causing you
grief, even with it shutdown. Sometimes shutting down the alarm cause more
problems with open sockets or allowed Running executables. One reason I do not
like that program. However, every has their preferences.
You could also check your event log (you may need to turn on all items - success
failures etc), this is a far reach...
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of CCDesire
Sent: Thursday, April 12, 2007 10:00 AM
To: 'Cisco certification'
Subject: RE: Problem with ACS
Hi Hewie,
I tried as you recommend and got similar output as what you got.
Our server is installed with zone alarm but even when I shut it down, things
didnt get any better.
Still no logs on server and authentication failed on router.
_____
From: Hewie [mailto:whewetson@gmail.com]
Sent: Thursday, April 12, 2007 12:23 AM
To: Luu Hoang Dung
Cc: ccielab@groupstudy.com
Subject: Re: Problem with ACS
Hi Luu,
run 'netstat -an | more' from the command prompt on your ACS server to see if it
is listening on TCP 49, your output should look like this
Proto Local Address Foreign Address State
TCP HYPERLINK "http://0.0.0.0:49"0.0.0.0:49 HYPERLINK
"http://0.0.0.0:0"0.0.0.0:0 LISTENING
Are you sure you dont have the windows firewall enabled on you server?
Hewie
On 4/11/07, Luu Hoang Dung <HYPERLINK
"mailto:lhd.ccdzi@gmail.com"lhd.ccdzi@gmail.com> wrote:
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 HYPERLINK "http://192.168.1.200"192.168.1.200 49
Trying HYPERLINK "http://192.168.1.200"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 HYPERLINK
"http://192.168.1.200"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:HYPERLINK
"mailto:marvin@ipexpert.com"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?"
HYPERLINK "mailto:marvin@ipexpert.com"marvin@ipexpert.com
HYPERLINK "http://www.IPexpert.com"http://www.IPexpert.com
-----Original Message-----
From: HYPERLINK "mailto:nobody@groupstudy.com"nobody@groupstudy.com
[mailto:HYPERLINK "mailto:nobody@groupstudy.com" 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 HYPERLINK "http://206.222.152.1"206.222.152.1 single
Tacacs-server key ventu
Pls help me troubleshoot this problem.
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Checked by AVG Free Edition.
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3:27 PM
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