HP StorageWorks Enterprise File Services WAN Accelerator User Manual
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3. Use the controls to complete the configuration, as described in the following table.
Control
Description
Add New Rule
Type. Select one of the following rule types from the drop-down list:
• Auto-Discovery. Auto-discovery is the process by which the HP EFS WAN
Accelerator automatically intercepts and optimizes traffic on all Internet Protocol (IP)
addresses and ports. By default, auto-discovery is applied to all IP addresses and the
ports which are not secure or interactive. Defining in-path rules modifies this default
setting.
• Fixed-Target. Use fixed-target rules to specify out-of-path HP EFS WAN Accelerators
near the target server that you want to optimize. Determine which servers you would
like a particular HP EFS WAN Accelerator to optimize (and, optionally, which ports),
and add rules to specify the network of servers, ports, port labels, and out-of-path HP
EFS WAN Accelerators to use.
• Pass-Through. Pass-through rules identify traffic that is passed through the network
unoptimized. You define pass-through rules to exclude subnets from optimization.
Traffic is also passed through when the HP EFS WAN Accelerator is in bypass mode.
(Pass through might be occur because of in-path rules or because the connection was
established before the HP EFS WAN Accelerator was put in place or before the HP
EFS WAN Accelerator service was enabled.)
• Discard. Packets for the connection that match the rule are dropped silently. The HP
EFS WAN Accelerator filters out traffic that matches the discard rules. This process is
similar to how routers and firewalls drop disallowed packets: the connection-initiating
device has no knowledge of the fact that its packets were dropped until the connection
times out.
• Deny. When packets for connections match the deny rule, the appliance actively tries
to reset the connection. Deny tells the HP EFS WAN Accelerator to actively try to reset
a TCP connection being attempted. Using an active reset process, rather than a silent
discard allows the connection initiator to know that its connection is disallowed.
If you have an out-of-path configuration with failover support, you specify the master
and backup HP EFS WAN Accelerator in the Optimization Service - In-Path Rules page.
NOTE: In out-of-path deployments, to optimize MAPI Exchange 2003 by destination
port, you must define fixed-target, in-path rules that specify the following ports on the
client-side HP EFS WAN Accelerator: the Microsoft end-point mapper port: 135; the HP
EFS WAN Accelerator port for Exchange traffic: 7830; the HP EFS WAN Accelerator
port for Exchange Directory Name Service Provider Interface (NSPI) traffic: 7840. For
detailed information, see
“Optimizing MAPI Exchange in Out-of-Path Deployments” on
Source Subnet. Specify the IP address for the source network in the Source Subnet text
box. Use the following format: XXX.XXX.XXX.XXX/XX.
Destination Subnet. Specify the IP address for the destination network. Use the
following format: XXX.XXX.XXX.XXX/XX.
Port. Specify the destination port number, port label, or all. For detailed information on
port labels, see