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Define Xpress-IP Settings

Xpress compression and acceleration require that each network interface (built-in and LEMs) on the PacketShaper be assigned a unique IP address, called an Xpress-IP address. The Xpress-IP (XIP) address is used for establishing tunnels between PacketShapers.

Until you assign XIP addresses, PacketWise will not be able to set up tunnels for compression, packing, or acceleration.

To configure Xpress-IP addresses:

1. Click the xpress tab.

2. Click xpress-ip settings. The Xpress-IP Settings window appears. screen show screen

3. For each network interface (built-in or LEM) you want to use for Xpress tunneling, fill in the following information:

Field
Description
IP Address
Xpress-IP (XIP) address to assign to the device; each device must have a unique address on the appropriate network segment. Note that this address is used by the Xpress feature and is not for managing the PacketShaper. An XIP address can NOT be the same as the unit's management address or customer portal address.
Net Mask
Subnet mask (for example, 255.255.0.0)
Gateway

IP address of the router; leave blank or enter none if there is no gateway. The Xpress-IP (XIP) gateway is required in the following situations:

  • If the tunnel partner is not on the same subnet
    - or -
  • If acceleration is enabled, and the TCP connection endpoints are not on the same subnet as the XIP address

In most cases, the XIP gateway will need to be configured.

Note: If you need to define an ingress gateway, use the tunnel ip configure command. When an ingress gateway is configured, it will be used for inbound detunneled packets (that is, traffic that has been accelerated, compressed, and/or packed in an Xpress tunnel). The XIP gateway will be used for outbound tunneled traffic. Ingress gateway configuration is available starting in v8.1.1.

For VLAN networks only: (optional parameters)
VLAN ID

802.1Q VLAN ID (0 - 4095)

Note: A maximum of three VLAN IDs can be assigned per PacketShaper (one for each device).

VLAN Priority
802.1P VLAN priority (0-7)

If your network isn't using VLAN IDs but you want to set a VLAN priority, you must set a VLAN ID of 0 (zero) before you can select a priority.

4. Click OK to update the settings.

Note that when you assign or change XIP addresses, Xpress will tear down existing tunnels and establish new tunnels using the new addresses.

If you clear all XIP addresses, Xpress will not be able to create tunnels and compression, packing, and acceleration will not work.

See also:

Xpress Overview


PacketGuide™ for PacketWise® 8.1