Hi Xavier,

Retrospect only communicates over port 497. If the machine in the DMZ has a
static IP address, and you log it in that way, then only TCP/IP
communication is required. Otherwise, UDP multicast packets must be allowed
on port 497 as well, in order for Retrospect to "discover" the client at the
beginning of each operation.

I hope this helps.

Best regards,

Eric Ullman
Dantz Development

Xavier HUMBERT at Labo Informatique <[EMAIL PROTECTED]> wrote:

> I have a classic Firewall with 3 networks : LAN, DMZ and Internet
> I have added a MacOS machine on the DMZ, while the Backup server is on
> the LAN, and I want to backup this machine.
> As expected, Retrospect can't see the remote client. Which port(s) does
> Retrospect Backup use to communicate with the client ?

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