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Rockwell Automation Publication 1783-UM007G-EN-P - February 2017 277

Configure Switch Features Chapter 7

Table 65 - Range Translation

Field Description

Type of Entry Choose Range.

Starting Private IP Address Type the existing starting address for the device on the private subnet.

Starting Public IP Address Type a unique, starting public address to represent the device.

Range Type the number of addresses to include in the range.

Valid values: 2…128

Default value = 1

IMPORTANT: Each address in the range counts as one translation entry. The switch supports a maximum of 128 translation

entries.

Effective Private Addresses Displays the range of existing addresses for devices on the private subnet that are configured for translation.

If blank, verify that the values in the preceding fields are valid.

Effective Public Addresses Displays the range of unique public addresses to represent the devices.

If blank, verify that the values in the preceding fields are valid.

Table 66 - Subnet Translation

Field Description

Type of Entry Choose Subnet.

Starting Private IP Address Type the existing starting address for a device on the private subnet. This address must correspond to the size of the subnet mask to translate.

Subnet Mask Starting Private Subnet Address

255.255.0.0 The last two octets must end in 0.

EXAMPLE: 192.168.0.0

255.255.255.0 The last octet must end in 0.

EXAMPLE: 192.168.1.0

255.255.255.128 The last octet must end in 0 or 128.

EXAMPLE: 192.168.1.0 or 192.168.1.128

255.255.255.192 The last octet must in one of the following: 0, 64, 128, 192.

EXAMPLE: 192.168.1.64

255.255.255.224 The last octet must in one of the following: 0, 32, 64, 96, 128, 160, 192, 224.

EXAMPLE: 192.168.1.32

255.255.255.240 The last octet must in one of the following: 0, 16, 32, 48, 64, 80, 96, 112, 128, 144, 160, 176, 192, 208, 224, 240.

EXAMPLE: 192.168.1.16

Starting Public IP Address Type a unique, starting public address to represent the devices. This address must correspond to the size of the subnet mask to translate.

Subnet Mask Starting Public Subnet Address

255.255.0.0 The last two octets must end in 0.

EXAMPLE: 10.200.0.0

255.255.255.0 The last octet must end in 0.

EXAMPLE: 10.200.1.0

255.255.255.128 The last octet must end in 0 or 128.

EXAMPLE: 10.200.1.0 or 10.200.1.128

255.255.255.192 The last octet must in one of the following: 0, 64, 128, 192.

EXAMPLE: 10.200.1.64

255.255.255.224 The last octet must in one of the following: 0, 32, 64, 96, 128, 160, 192, 224.

EXAMPLE: 10.200.1.32

255.255.255.240 The last octet must in one of the following: 0, 16, 32, 48, 64, 80, 96, 112, 128, 144, 160, 176, 192, 208, 224, 240.