Specifications

Address translation: SNATs, NATs, and IP forwarding
BIG-IP® Reference Guide 4 - 129
2. Click the SNATs tab.
3. Click the Add button.
The Add SNAT screen opens.
4. In the Translation Address dialog area, click the Automap button.
5. If you want to map the translation address from one or more specific
nodes, enter each node’s IP address into the Original Address: box
and move the address to the Current List: box, using the right
arrows (>>). Also, verify that the option choose appears in the
VLAN box.
6. If you want to map the translation address to a VLAN, select the
VLAN name from the VLAN box and move the selection to the
Current List: field, using the right arrows (>>).
7. Click Done.
To add an automapped SNAT from the command line
The bigpipe snat command defines one SNAT for one or more original IP
addresses, where the original IP address can be either a specific node
address, or a VLAN name.
For example, to define an automapped SNAT for two individual node
addresses:
b snat map 10.1.1.1 10.1.1.2 to auto
In the preceding example, the translation address to which the nodes
10.1.1.1 and 10.1.1.2 will be mapped is the self IP address, assuming that
you enabled the snat automap attribute on that self IP address prior to using
the bigipipe snat command. For more information, see To enable the snat
automap attribute on a self IP address from the command line, on page
4-128.
To define an automapped SNAT for a VLAN named internal:
b snat map internal to auto
To define an automapped SNAT for both a node address and a VLAN:
b snat map 192.168.75.50 internal2 to auto
Note
When adding automapped SNATs, you must also enable the snat automap
attribute on the self IP address that the BIG-IP will use as the translation
address. For more information, see To enable the snat automap attribute
on a self IP address from the command line, on page 4-128.
Adding automapped SNATs for active-active configurations
In the case where you want to add a default SNAT for an active-active
configuration, you cannot create the standard default SNAT described
earlier in this section. Instead, you must create the equivalent of a default
SNAT.