HP StorageWorks Storage Mirroring user's guide (T2558-96073, February 2008)

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11 X Protecting Data Across a NAT or Firewall
Protecting Data Across a NAT or Firewall
If your source and target are on opposite sides of a NAT or firewall, you will need special configurations to accommodate the
complex network environment. Additionally, you must have the hardware already in place and know how to configure the
hardware ports. If you do not, see the reference manual for your hardware.
In this environment, you must have static mapping where a single, internal IP address is always mapped in a one-to-one
coorelation to a single, external IP address. Storage Mirroring cannot handle dynamic mappings where a single, internal IP
address can be mapped to any one of a group of external IP addresses managed by the router.
Verifying the Storage Mirroring port settings
Storage Mirroring uses specific ports for communication between the Storage Mirroring servers and Storage Mirroring clients.
In order to use Storage Mirroring through a NAT or firewall, you must first verify the current Storage Mirroring port settings
so that you can open the correct ports on your hardware to allow Storage Mirroring machines to communicate with each
other.
Using the following table, locate and record your port settings for each of the Storage Mirroring ports. The port setting can
be found in the following locations.
 Management Console—From the Management Console, select File, Options, and go to the Configuration tab.
 Failover Control Center—From the Failover Control Center, select Settings, Communications.
 Storage Mirroring server—From the Management Console, right-click on a server in the tree in the left pane of the
Management Console, select
Properties, and go to the Network tab.
Port Description
Default
Setting
Record
Yo u r Po r t
Setting
Management Console
Status Transmit Port
The Status Transmit Port sends and receives directed
UDP comunications to display status and statistics in the
Management Console.
1105
Management Console
Heartbeat Advertisement
The Heartbeat Advertisment port sends and receives
broadcast UDP communications to populate the
Management Console tree with Storage Mirroring
servers.
1100
Failover Control Center
Service Transmit Port
The Service Transmit Port sends and receives TCP
communication between Storage Mirroring servers and
between Storage Mirroring servers and Storage
Mirroring clients.
1100
Failover Control Center
Heartbeat Listen Port
The Heartbeat Listen Port send and receives broadcast
UDP communications to populate the Failover Control
Center with Storage Mirroring servers.
1100
Storage Mirroring Server
Service Listen Port
The Service Listen Port sends and receives TCP
communication between Storage Mirroring servers and
between Storage Mirroring servers and Storage
Mirroring clients.
1100
Storage Mirroring Server
Heartbeat Transmit Port
The Heartbeat Advertisement port sends and receives
broadcast UDP communications to populate the
Management Console tree with Storage Mirroring
servers.
1100
Storage Mirroring Server
Status Listen Port
The Status Listen Port sends directed UDP
comunications to display status and statistics in the
Management Console.
1105
NOTE: If you change any of the port settings, you must stop and restart the Storage Mirroring service for the new port
setting to take effect.