nat position

Format

nat position position-number fixed-string interval-string [ create | free ]

nat position position-number { timestamp-year | timestamp-month | timestamp-date | timestamp-hour | timestamp-minute | timestamp-second | starttime-year | starttime-month | starttime-date | starttime-hour | starttime-minute | starttime-second | timestamp-month-en | timestamp-month-abbreviation | timestamp-second-dec | timestamp-second-hex | starttime-month-en | starttime-month-abbreviation | starttime-second-dec | starttime-second-hex | endtime-second-dec | endtime-second-hex | host-ip | app-name | scene | source-ip | destination-ip | vpn-id | session-id | protocol | nat-source-ip | source-port | nat-source-port | destination-port | instance-id | pool-id | slot-id | cpu-id | sequence-hex | sequence-dec | cgn-ip | extend-first | extend-second | extend-third | extend-fourth | extend-fifth | extend-sixth | extend-seventh | extend-eighth } [ interval-string ] [ create | free ]

undo nat position position-number [ { timestamp-year | timestamp-month | timestamp-date | timestamp-hour | timestamp-minute | timestamp-second | starttime-year | starttime-month | starttime-date | starttime-hour | starttime-minute | starttime-second | timestamp-month-en | timestamp-month-abbreviation | timestamp-second-dec | timestamp-second-hex | starttime-month-en | starttime-month-abbreviation | starttime-second-dec | starttime-second-hex | endtime-second-dec | endtime-second-hex | host-ip | app-name | scene | source-ip | destination-ip | vpn-id | session-id | protocol | nat-source-ip | source-port | nat-source-port | destination-port | instance-id | pool-id | slot-id | cpu-id | sequence-hex | sequence-dec | cgn-ip | fixed-string | extend-first | extend-second | extend-third | extend-fourth | extend-fifth | extend-sixth | extend-seventh | extend-eighth } [ interval-string ] [ create | free ] ]

Parameters

Parameter	Description	Value
position-number	Specifies the ID of a field.	The value is an integer ranging from 0 to 63.
timestamp-year	Indicates the year in a timestamp.	-
timestamp-month	Indicates the month in a timestamp.	-
timestamp-date	Indicates the day in a timestamp.	-
timestamp-hour	Indicates the hour in a timestamp.	-
timestamp-minute	Indicates the minute in a timestamp.	-
timestamp-second	Indicates the second in a timestamp.	-
starttime-year	Indicates the start year.	-
starttime-month	Indicates the start month.	-
starttime-date	Indicates the start date.	-
starttime-hour	Indicates the start hour.	-
starttime-minute	Indicates the start minute.	-
starttime-second	Indicates the start second.	-
timestamp-month-en	Indicates the month in a timestamp abbreviation.	-
timestamp-month-abbreviation	Indicates the month in a timestamp abbreviation.	-
timestamp-second-dec	Indicates the second in a timestamp in decimal notation.	-
timestamp-second-hex	Indicates the second in a timestamp in hexadecimal notation.	-
starttime-month-en	Month in the start timein full spelling.	-
starttime-month-abbreviation	Month in the start time in abbreviated form.	-
starttime-second-dec	Indicates the second in a start time in decimal notation.	-
starttime-second-hex	Indicates the second in a start time in hexadecimal notation.	-
endtime-second-dec	Indicates the second in an end time in decimal notation.	-
endtime-second-hex	Indicates the second in an end time in hexadecimal notation.	-
host-ip	Indicates a device IP address that can be configured using the nat log host command.	-
app-name	Indicates the name of a log server.	-
scene	Indicates a scenario.	-
source-ip	Indicates the source IP address.	-
vpn-id	Indicates the ID of a user VPN.	-
session-id	Indicates the ID of a session table.	-
nat-source-ip	Indicates the source IP address after NAT is implemented.	-
instance-id	Indicates the ID of a instance.	-
pool-id	Indicates the ID of an address pool.	-
slot-id	Indicates a slot ID.	-
cpu-id	Indicates the ID of a CPU.	-
sequence-hex	Indicates a sequence number in hexadecimal notation.	-
sequence-dec	Indicates a sequence number in decimal notation.	-
cgn-ip	Indicates the management IP address of a CGN device. This field is optional for the logs directly forwarded by the CGN device and is mandatory for the logs forwarded by an intermediate device.	-
extend-first	Indicates reserved field 1.	-
extend-second	Indicates reserved field 2.	-
extend-third	Indicates reserved field 3.	-
extend-fourth	Indicates reserved field 4.	-
extend-fifth	Indicates reserved field 5.	-
extend-sixth	Indicates reserved field 6.	-
extend-seventh	Indicates reserved field 7.	-
extend-eighth	Indicates reserved field 8.	-
create	Allocates ports to users or creates a flow table.	-
free	Releases user ports or makes a flow table age out.	-
fixed-string interval-string	Specifies a fixed character string of the flexible log template, such as the priority and version. For details, see "User Syslog Format" and "Flow Syslog Format" in Feature Description.	The value is a string of 1 to 31 case-sensitive characters. The value starts with and ends at a double quotation mark (") and at least one character must be within the double quotation marks (").
destination-ip	Indicates the destination IP address.	-
protocol	Indicates a protocol.	-
source-port	Indicates the source port number in packets.	-
nat-source-port	Indicates the source port after NAT is implemented.	-
destination-port	Indicates the destination port number in packets.	-

Views

Flexible log template view

Default Level

2: Configuration level

Task Name and Operations

Task Name	Operations
nat	write

Usage Guidelines

The NAT syslog format can be customized based on the customer log system. To enable customization of log formats, run the nat position command to configure a flexible flow log format.

Example

# Configure a flexible log template with the session log format as 1 2014 Oct 8 14:04:17 10.1.1.31 cnelog - NAT444:SessionbasedW [17 172.16.178.228 - 192.168.17.234 1024 4097 -].

<HUAWEI> system-view
[~HUAWEI] nat syslog flexible template session
[*HUAWEI-nat-syslog-template-session] nat position 0 fixed-string  "<134> 1 "
[*HUAWEI-nat-syslog-template-session] nat position 1 timestamp-year " "
[*HUAWEI-nat-syslog-template-session] nat position 2 timestamp-month-en " "
[*HUAWEI-nat-syslog-template-session] nat position 3 timestamp-date " "
[*HUAWEI-nat-syslog-template-session] nat position 4 timestamp-hour ":"
[*HUAWEI-nat-syslog-template-session] nat position 5 timestamp-minute  ":"
[*HUAWEI-nat-syslog-template-session] nat position 6 timestamp-second " "
[*HUAWEI-nat-syslog-template-session] nat position 7 host-ip " "
[*HUAWEI-nat-syslog-template-session] nat position 8 app-name " - "
[*HUAWEI-nat-syslog-template-session] nat position 9 scene ":"
[*HUAWEI-nat-syslog-template-session] nat position 10 fixed-string  "SessionbasedA [" create
[*HUAWEI-nat-syslog-template-session] nat position 10 fixed-string  "SessionbasedW [" free
[*HUAWEI-nat-syslog-template-session] nat position 11 protocol " "
[*HUAWEI-nat-syslog-template-session] nat position 12 source-ip " - "
[*HUAWEI-nat-syslog-template-session] nat position 13 destination-ip " "
[*HUAWEI-nat-syslog-template-session] nat position 14 source-port " "
[*HUAWEI-nat-syslog-template-session] nat position 15 destination-port " -]"