HP MSR2000/3000/4000 Router Series Layer 3 - IP Services Command Reference

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display nat no-pat
Use display nat no-pat command to display information about NAT NO-PAT entries.
Syntax
MSR2000/MSR3000:
display nat no-pat
MSR4000:
display nat no-pat [ slot slot-number ]
Views
Any view
Default user roles
network-admin
network-operator
Parameters
slot slot-number: Specifies the slot number of a card. If no slot number is specified, this command
displays NO-PAT entry information for all cards. (MSR4000)
Usage guidelines
If a NAT device does not have a NO-PAT translation method configured, the device creates a NAT
session entry, and then a NO-PAT entry for recording the mapping between an internal address and a
NAT address. A NO-PAT entry can also be created during the ALG process for NAT.
The NO-PAT entry ensures the following:
• The same mapping applies to subsequent connections originating from the same source IP as the
first connection.
• The destination IP address of the packets of a connection originating from the reverse direction to
the NAT address can be translated based on the existing NO-PAT entry.
Outbound and inbound NO-PAT address translations create their own NO-PAT tables, and these two
types of tables are displayed separately.
Examples
# On the MSR2000/MSR3000 router, display information about NO-PAT entries for all cards.
<Sysname> display nat no-pat
Global IP: 200.100.1.100
Local IP: 192.168.100.100
Global VPN: vpn2
Local VPN: vpn1
Reversible: N
Type : Inbound
Local IP: 192.168.100.200
Global IP: 200.100.1.200
Reversible: Y
Type : Outbound