User's Manual Part 2
Release8InstallationandConfigurationGuide
Issue2,November2007 Draft5forRegulatoryReview 272
NAT Enable/Disable
This parameter enables or disabled the Network Address Translation (NAT) feature for
the SM. NAT isolates devices connected to the Ethernet/wired side of an SM from being
seen directly from the wireless side of the SM. With NAT enabled, the SM has an IP
address for transport traffic separate from its address for management, terminates
transport traffic, and allows you to assign a range of IP addresses to devices that are
connected to the Ethernet/wired side of the SM. For further information, see Network
Address Translation (NAT) on Page 156 and NAT and IP Tabs of the SM with NAT
Enabled on Page 271.
NAT Private Network Interface Configuration, IP Address
Assign an IP address for SM management through Ethernet access to the SM. Set only
the first three bytes. The last byte is permanently set to 1. This address becomes the
base for the range of DHCP-assigned addresses.
NAT Private Network Interface Configuration, Subnet Mask
Assign a subnet mask of 255.255.255.0 or a more restrictive subnet mask. Set only the
last byte of this subnet mask. Each of the first three bytes is permanently set to 255.
DMZ Host Interface Configuration, IP Address
If you will be enabling DMZ in the next parameter, set the last byte of the DMZ host IP
address to use for this SM when DMZ is enabled. Only one such address is allowed.
The first three bytes are identical to those of the NAT private IP address. Ensure that the
device that should receive network traffic behind this SM is assigned this address.
The system provides a warning if you enter an address within the range that DHCP can
assign.
DMZ Enable
Either enable or disable DMZ for this SM. See DMZ on Page 156.
NAT Public Network Interface Configuration, IP Address
This field displays the IP address of the SM. If DHCP Client is enabled, then the DHCP
server automatically assigns this address.
NAT Public Network Interface Configuration, Subnet Mask
This field displays the subnet mask of the SM. If DHCP Client is enabled, then the DHCP
server automatically assigns this subnet mask.
NAT Public Network Interface Configuration, Gateway IP Address
This field displays the gateway IP address for the SM. If DHCP Client is enabled, then the
DHCP server automatically assigns this gateway IP address.
DHCP Start IP
If you will be enabling DHCP Server below, set the last byte of the starting IP address
that the DHCP server will assign. The first three bytes are identical to those of the NAT
private IP address.
Number of IPs to Lease
Enter how many IP addresses the DHCP server is allowed to assign. The default value is
50 addresses.