If you had no nodename option in dsm.opt your hostname acts as nodename.
Thus on hostname (not IP address) change you have to be authenticated as
new node. If nodename option is defined it is used for password matching
not the hostname.
Either you have nodename option (and nodename/generated password pair is
still valid) or your server is on open registration. Also you might
changed you Internet address but your VPN address is the same. Please,
please, do not tell me your TSM is open to Internet and your
nodename/password is going without VPN!

Zlatko Krastev
IT Consultant






Alexander Verkooijen <alexander AT SARA DOT NL>
Sent by: "ADSM: Dist Stor Manager" <ADSM-L AT VM.MARIST DOT EDU>
27.01.2003 12:45
Please respond to "ADSM: Dist Stor Manager"


        To:     ADSM-L AT VM.MARIST DOT EDU
        cc:
        Subject:        Client doesn't ask for password when IP address changes?


Hello,

I'm using TSM (5.1.1.0 client) on Windows XP (SP 1)
to backup my PC at home.
This weekend I switched from one ISP (cable)
to another ISP (ADSL).
This of course changed the IP address and hostname
of my PC completely.

The change of IP adress is clearly visible in the
activity log on the server when I search for the
"Session XXXX started for node BLAHBLA" message.

When I started the backup client after the change
it never asked me for the node's password,
it just logged on to the server and allowed
me to start a backup.

I'm absolutely sure of this because I've forgotten
the password so when it *had* asked me for I wouldn't
have known it.

I can't explain this behaviour. Shouldn't the client prompt
for a password when I change to IP address or hostname?

Our server is 4.2.3.2 (4.2.3.3 in a few hours) on
AIX 4.3.3.0

Kind regards,

Alexander
--
-----------------------------------------------
Alexander Verkooijen        (alexander AT sara DOT nl)
Senior Systems Programmer
SARA High Performance Computing