Will you be able to grab a sniffer trace from the MAC user machine after
recreating the problem and unicast it to me.
What would really help is 2 sniffer traces:-

1) From a PC where it works fine without dropping
2) From a MAC where it does not work correctly.

Also, are there different roles for PC and MAC users? Anything different
about the roles?

-Prem
 

-----Original Message-----
From: Cisco Clean Access Users and Administrators
[mailto:[log in to unmask]] On Behalf Of Grzeczka, Timothy
J.
Sent: Thursday, January 11, 2007 7:33 AM
To: [log in to unmask]
Subject: Re: IM Clients on Macs

The software I've gotten complaints on is AOL IM for Macintosh. I had a
student here last night with her laptop and this software installed.

I plugged into a CCA jack and logged in via the web (not guest access).
When she tried to log into AOL IM, it would start and then give an error
regarding the connection being dropped.

I then plugged into a non-CCA jack and had her try to login. No issues. 

I checked in the AOL IM software and it's trying to connect to
login.oscar.aol.com over port 5190. This matches the PC version of the
AOL IM software. I asked if she knew of any PC user having issues. Her
roommate is a PC user and has no issues with AOL IM.

We don't filter any ports via CCA once a user is logged in and
authenticated.


-----Original Message-----
From: Cisco Clean Access Users and Administrators
[mailto:[log in to unmask]] On Behalf Of Prem
Ananthakrishnan (prananth)
Sent: Wednesday, January 10, 2007 6:15 PM
To: [log in to unmask]
Subject: Re: IM Clients on Macs

Hey Timothy,

So, the same IM software works fine for NON- Macintosh machines on the
CCA VLAN? Only the Macintosh machines have a problem? What IM is this?
Maybe it uses some kind of multicast traffic or special protocol?

-Prem 

-----Original Message-----
From: Cisco Clean Access Users and Administrators
[mailto:[log in to unmask]] On Behalf Of Grzeczka, Timothy
J.
Sent: Wednesday, January 10, 2007 2:37 PM
To: [log in to unmask]
Subject: IM Clients on Macs

Odd question for the group:

I'm trying to track down an odd issue. I have multiple Macintosh users
with IM issues on Clean Access. If I try the IM using their machine on a
non-CCA VLAN, I get through with no problem.

Is there something I could be missing? I have them logged into CCA via
the web and have our Authenticated role to allow all ports outbound.

Timothy Grzeczka
Network Analyst
Dominican University
[log in to unmask]
Voice - (708) 524-6568
Fax - (708) 488-5111