Rockwell Automation Publication 1783-UM007G-EN-P - February 2017 259
Configure Switch Features Chapter 7
An address translation can be one of three types. The type of translation
determines the number of translation entries as shown in
Table 61.
Table 62 defines the maximum number of translation entries that are allowed
per switch.
Table 61 - Number of Translation Entries by Translation Type
Translation
Type
Translation
Entries
Description
Single 1 Translates one IP address.
Consists of the following:
• One private IP address
• One public IP address
Range Multiple Translates a range of IP addresses.
Consists of the following:
• One starting private IP address
• One starting public IP address
• Multiple entries that are based on the range you specify
Subnet 1 Translates all IP addresses within a subnet or portion of a subnet.
Consists of the following:
• One starting private IP address
• One starting public IP address that is aligned on valid subnet boundaries
• Subnet mask
EXAMPLE The following translation types count as 10 translation entries:
• Single translation for one device
• Range translation for eight devices
• Subnet translation for all devices on the subnet
Singe and range translation types have a one-to-one relationship between
translations entries and addresses to be translated. However, subnet
translations have a one-to-many relationship allowing one translation entry
for many addresses.
Table 62 - Maximum Translation Entries
Switch Maximum Translation Entries
Stratix 5400 and Stratix 5700 128 across all NAT ports.
Stratix 5410 128 across NAT ports 1…6 and 13…18.
and
128 across NAT ports 7…12, 19…24, and 25…28.
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