To add a dynamic IP address pool
In the AMC, navigate to System Configuration > Services.
In the Access Services section, under Network tunnel service area, Configure. The Network Tunnel Service page displays.
In the IP Address Pools section, click the + (New) icon. The IP Address Pool page displays.
You can configure IPv4 and IPv6 addresses regardless of the current network configuration. However, warning appears indicating that pool ranges may be ignored if the addresses are not compatible with the IP address of the internal interface.
In the Name field, type a name for the address pool.
In the Description field, type a descriptive comment about the address pool.
Click Routed address pool - dynamic.
By default the DHCP server field is blank; the appliance sends broadcast requests to locate DHCP servers and uses them to allocate addresses. Leave this box blank unless you need to configure a specific DHCP server.
Click Save. (DHCP address pools ignore the Advanced settings on this AMC page.)