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Monitoring NAT
The J-Web interface provides information about Network Address
Translation (NAT).
This section contains the following topics:
Monitoring Incoming Table Information
To view Network Address Translation table information,
select Monitor>NAT>Incoming Table in the J-Web
interface, or enter the following CLI command:
show security nat incoming-table
Table 53 summarizes key output fields in the incoming table display.
Table 53: Summary of Key Incoming Table Output Fields
Field
|
Values
|
Additional Information
|
| Incoming Table Summary |
In use
|
Number of entries in the NAT table.
|
|
Maximum
|
Maximum number of entries possible in the NAT table.
|
|
Entry allocation failed
|
Number of entries failed for allocation.
|
|
Destination
|
Destination IP address and port number.
|
|
Host
|
Host IP address and port number that the destination IP address
is mapped to.
|
|
References
|
Number of sessions referencing the entry.
|
|
Timeout
|
Timeout, in seconds, of the entry in the NAT table.
|
|
Source-pool
|
Name of source pool where translation is allocated.
|
|
Monitoring Source NAT Information
To view the source Network Address Translation (NAT) summary
table and the details of the specified NAT source address pool information,
select Monitor>NAT>Source NAT in the J-Web interface,
or enter the following CLI commands:
- show security nat source-nat summary
- show security nat source-nat pool pool-name
Table 54 summarizes key output fields in the source NAT display.
Table 54: Summary
of Key Source NAT Output Fields
Field
|
Values
|
Additional Information
|
| Source NAT Summary Table |
Pool Name
|
Name of the source pool.
|
|
Address Low
|
Starting IP address of one address range in the source pool.
|
|
Address High
|
Ending IP address of one address range in the source pool.
|
|
Interface
|
Name of the interface on which the source pool is defined.
|
|
PAT
|
Whether Port Address Translation (PAT) is enabled (Yes, or No).
|
|
| Source NAT Pool Specific Summary: pool-name |
Address
|
IP address in the source pool.
|
|
Interface
|
Name of the interface on which the source pool is defined.
|
|
Status
|
Status of the IP address:
- Active—Denotes that the IP address is in
use. This status applies only to source NAT without Port Address Translation
(PAT).
- Free—IP address is available for allocation.
|
|
Single Ports
|
Number of allocated single ports.
|
|
Twin Ports
|
Number of allocated twin ports.
|
|
PAT
|
Whether PAT is enabled (Yes or No).
|
|
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