Extreme 3804 User Guide

Summit24e3 Switch Installation and User Guide

117

Displaying NAT Settings

To display NAT rules, use the following command: 

show nat rules {vlan <outside_vlan>}

This command displays the NAT rules for a specific VLAN. Rules are displayed in the order they are 
processed, starting with the first one. 

To display NAT traffic statistics, use the following command:

show nat stats

This command displays statistics for the NAT traffic, and includes:

The number of rules

The number of current connections 

The number of translated packets on the inside and outside VLANs

Information on missed translations

To display NAT connection information, use the following command:

show nat connections

This command displays the current NAT connection table, including source IP/Layer 4 port mappings 
from inside to outside. 

Disabling NAT

To disable NAT, use the following command:

disable nat

config nat syn-timeout <seconds>

Configures the timeout for an entry with an 
unacknowledged TCP SYN state. The 
default setting is 60 seconds.

config nat tcp-timeout <seconds>

Configures the timeout for a fully setup TCP 
SYN session. The default setting is 120 
seconds.

config nat udp-timeout <seconds>

Configures the timeout for an UDP session. 
The default setting is 120 seconds.

config nat timeout <seconds>

Configures the timeout for any IP packet that 
is not TCP,UDP or ICMP. The default setting 
is 600 seconds.

show nat timeout

Displays NAT timeout settings.

Table 28: NAT Timeout Commands  (continued)