Cyclades AlterPath BladeManager Manuel d'instructions télécharger pdf (Page 197)

Appendices 183

The administrator must define either an IP address or addresses for priv0 by defining private

subnet(s). When multiple private subnets exist, their IP addresses are assigned to aliases of priv0,

such as priv0:sub1 and priv0:sub2.

Configuring a private subnet

An administrator configures a private subnet by performing the following:

• Defining a range of IP addresses which administrators can assign to target devices that are

connected to the private ports.

• Designating one of the IP addresses within the specified range to be used by the SP manager.

The appliance-side address must be used by users when creating a IPSec VPN connection to

enable native IP access.

The SP manager uses the specified information to create a route to the private subnet.

The range of IP addresses is derived from the information shown in Table C.6, which the

administrator supplies to define a private subnet.

The system derives the range of addresses that can be used for talking to target devices by using the

network portion of the SP manager’s IP address and from the private subnet netmask that the

administrator specified.

When configuring a target device, the administrator assigns the private subnet to the target device

and assigns an IP address within the range specified for the private subnet. The SP manager uses

the target device’s IP address when talking to a target device, and target devices use the SP

manager’s assigned address when talking the SP manager.

When a private subnet is configured, the private subnet name is assigned to the priv0 interface in

the form priv0:private_subnet-name along with the IP address assigned to the SP manager in the

form inet addr: <SPmanager_IPaddress>. If multiple private subnets are configured, multiple

priv0:private_subnet-name interfaces exist, each with its administratively configured private subnet

IP address for the SP manager. See the following examples for sample ifconfig output:

• Example 1: Private subnet configuration on page 184

• Example 2: Two private subnets and VPN configuration on page 185

Table C.6: Values for Configuring a Private Subnet

Field Definition

Private subnet name Any meaningful name chosen by the administrator, such as privnet1.

Appliance side IP address Target devices use this address when communicating with the SP manager. The

SP manager uses this address when communicating with target devices. This

address must be within the private subnet’s IP address range.

Subnet mask Defines the range of addresses available on the private subnet.

1 2 ... 192 193 194 195 196 197 198 199 200 201 202 ... 239 240

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Cyclades AlterPath BladeManager Manuel d'instructions Page 197