Re: Remote Client behind a firewall

[Eric Ullman]

Hi Wade,

When you open the Clients on Network window, Retrospect only sends out its
UDP query for systems on the local subnet--it does not try to connect with
clients in other subnets which are logged in directly by IP address or DNS
name until specific communication with that client is initiated by a
backup/restore/duplicate operation.

It's nothing to be concerned about. =)

Eric Ullman
Dantz Development


Wade Masshardt <[EMAIL PROTECTED]> wrote:

> What doesn't seem to be working, however, is when I tell the
> Retrospect server to show me the list of network clients. When I do
> that, the client behind my NAT machine shows up as "not connected".
> When I click the "connect" button it finds it just fine. My thinking
> is that the Retrospect server is using some other means to find the
> clients (not TCP or UDP port 497.) Could someone in the know tell me
> how Retrospect server finds out which clients are connected for
> display in the "Clients on Network" window? Thanks!



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Re: Remote Client behind a firewall

[Wade Masshardt]

At 11:36 +0200 9/22/00, Xavier HUMBERT - Labo Informatique 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 ?
>
>TIA,

I have a similar (although simpler: a single PC hooked to the network 
via a Mac acting as a router) setup. I port forwarded TCP port 497 
and UDP port 497 and backups are working fine.

What doesn't seem to be working, however, is when I tell the 
Retrospect server to show me the list of network clients. When I do 
that, the client behind my NAT machine shows up as "not connected". 
When I click the "connect" button it finds it just fine. My thinking 
is that the Retrospect server is using some other means to find the 
clients (not TCP or UDP port 497.) Could someone in the know tell me 
how Retrospect server finds out which clients are connected for 
display in the "Clients on Network" window? Thanks!

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|   Tech Support Coordinator   | 1-888-WIS-ALUM  (1-888-947-2586) |
| 608-265-8766 |    |
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Re: Remote Client behind a firewall

[Eric Ullman]

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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Remote Client behind a firewall

[Xavier HUMBERT - Labo Informatique]

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 ?

TIA,

-- 
Xavier HUMBERT  -  Systemes et Reseaux | [EMAIL PROTECTED]
INJEP  | [EMAIL PROTECTED]


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