Network Allocation

Network Allocation supports the creation of IP subnetwork configuration. A subnetwork with a selected VLAN can be applied to a device within the Routing section. When entries are added in the Network Allocation table, the Local IP Address Space field is valid only if it‘s a subnet address, not a host address. This table allows the user to create subnetworks which will be then used to the configure IP addresses per VLAN in the next table.

Note

A VLAN defined within Instant Port Profiles as Non-Forwarding cannot be used to create a subnetwork.

On the Network Allocation page, you can add, edit, or delete Network Allocation configurations. The table includes the following parameters:

Name
Description
IPv4 Subnetwork
Clients Per Subnet
DHCP Relay
VLAN Name
VLAN ID
VLAN Used By

Use this task to configure Network Allocation at the template level.

Go to Configure > Network Policies.
Create or select a Network Policy.
Select Switching > Routing > Network Allocation.
Select to add or to edit.

Configure the following IPv4 Network Allocation settings:

Table 1. Network Allocation Settings
Setting	Description
VLAN Attribute	A VLAN attribute can be created from within the VLAN attribute section within the Network Policy Switching Section.
Name	The name of your subnetwork.
Description	A description of your subnetwork.
Local IP Address Space	Define the local IP address space using CIDR notation, such as `10.1.0.0/16`. At the template level the IP address must be the valid network address and not a host address within the subnet range you are creating. For more Information, see Template-level IP Address Specifications.
Clients Per Subnet	Shows the clients per subnet.
Select One	Use the first IP address of the local IP address space for the IPv4 interface Use the last IP address of the local IP address space for the IPv4 interface
Enable DHCP Relay	Enable DHCP Relay. If enabled, select or create a DHCP Relay Common Object. For more information, see DHCP Server and Relay Object.

Template-level IP Address Specifications

If 10.35.1.161/30 is the host address, then to create a valid Network Allocation entry in the network policy switch routing section you must introduce 10.35.1.160/30 in the Local IP Address Space field or you will receive an "Invalid Network" error.

Using 10.35.1.160 will create the following IP Address parameters:

Network Address (10.35.1.160) - Can be used in the Network Allocation table.
Usable Host IP Range (10.35.1.161 - 10.35.1.162) - Can be used in the Routing table.
Broadcast Address (10.35.1.163) - Unable to use for ExtremeCloud‌ IQ or NOS.

When entries are added in a Routing table, the IPv4 Address / Subnet Mask is valid if a host address is used, and this is the IP address that will be configured on the VLAN.