Specifications

Chapter 4: Configuring the High-Level Network
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To enable mirroring for redundant systems
The following example sets SNAT mirroring for all SNAT connections
originating at 192.168.225.100:
b snat 192.168.225.100 mirror enable
To clear statistics
You can reset statistics by node address, SNAT address, or VLAN name.
Use the following syntax to clear all statistics for one or more nodes:
b snat <node_ip> ... stats reset
Use the following syntax to clear all statistics for one or more SNAT
addresses:
b snat <snat_ip> ... stats reset
Use the following command to reset the statistics to zero for the default:
b snat default stats reset
NATs
A network translation address (NAT) provides a routable alias IP address
that a node can use as its source IP address when making or receiving
connections to clients on the external network. (This distinguishes it from a
SNAT, which can make outbound connections but refuses inbound
connections.) You can configure a unique NAT for each node address
included in a virtual server mapping.
Note
Note that NATs do not support port translation, and are not appropriate for
protocols that embed IP addresses in the packet, such as FTP, NT Domain
or CORBA IIOP. You cannot define any NATs if you configure a default
SNAT.
Table 4.24 shows the attributes you can configure for a NAT.
NAT Attributes Description
Original address The original address is the node IP address of a host that you want to be able to connect to
through the NAT.
Translated address The translated address is an IP address that is routable on the external network of the BIG-IP.
This IP address is the NAT address.
Disabled VLAN list VLANs to which the NAT is not to be mapped can be explicitly disabled, as when there is more
than one internal VLAN.
Unit ID You can specify a unit ID for a NAT if the BIG-IP is configured to run in active-active mode.
Table 4.24 The attributes you can configure for a NAT