R0106-HP MSR Router Series Layer 3 - IP Services Configuration Guide(V7)

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[Router] interface gigabitethernet 2/1/2
[Router-GigabitEthernet2/1/2] nat outbound 2000
[Router-GigabitEthernet2/1/2] quit
# Configure the Endpoint-Independent Mapping mode for PAT. For packets with the same source address
and port number and permitted by ACL 2000, the source address and port number are translated to the
same external address and port number.
[Router] nat mapping-behavior endpoint-independent acl 2000
# Enable NAT hairpin on interface GigabitEthernet 2/1/1.
[Router] interface gigabitethernet 2/1/1
[Router-GigabitEthernet2/1/1] nat hairpin enable
[Router-GigabitEthernet2/1/1] quit
Verifying the configuration
# Verify that Host A, Host B, and Host C can access each other after they register their IP addresses and
port numbers to the external server. (Details not shown.)
# Display all NAT configuration and statistics.
[Router] display nat all
NAT outbound information:
There are 1 NAT outbound rules.
Interface: GigabitEthernet2/1/2
ACL: 2000 Address group: --- Port-preserved: N
NO-PAT: N Reversible: N
NAT logging:
Log enable : Disabled
Flow-begin : Disabled
Flow-end : Disabled
Flow-active : Disabled
Port-block-assign : Disabled
Port-block-withdraw : Disabled
Alarm : Disabled
NAT hairpinning:
There are 1 interfaces enabled with NAT hairpinning.
Interface: GigabitEthernet2/1/1
NAT mapping behavior:
Mapping mode: Endpoint-Independent
ACL : 2000
NAT ALG:
DNS : Enabled
FTP : Enabled
H323 : Enabled
ICMP-ERROR : Enabled
ILS : Enabled
MGCP : Enabled
NBT : Enabled