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

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Usage guidelines
A NAT device with PAT EIM configured first creates a NAT session entry, and then an EIM entry for
recording the mapping between an internal address/port and a NAT address/port.
The EIM entry ensures the following:
• The same mapping applies to subsequent connections originating from the same source IP and port
as the first connection.
• Allow reverse translation for connections originating from the external to the NAT address and port
based on the EIM entry.
Examples
# On the MSR2000/MSR3000 router, display information about NAT EIM entries.
<Sysname> display nat eim
Local IP/port: 192.168.100.100/1024
Global IP/port: 200.100.1.100/2048
Local VPN: vpn1
Global VPN: vpn2
Protocol: TCP(6)
Local IP/port: 192.168.100.200/2048
Global IP/port: 200.100.1.200/4096
Protocol: UDP(17)
Total entries found: 2
# On the MSR4000 router, display information about EIM entries for card in slot 0.
<Sysname> display nat eim slot 0
Slot 0:
Local IP/port: 192.168.100.100/1024
Global IP/port: 200.100.1.100/2048
Local VPN: vpn1
Global VPN: vpn2
Protocol: TCP(6)
Local IP/port: 192.168.100.200/2048
Global IP/port: 200.100.1.200/4096
Protocol: UDP(17)
Total entries found: 2
Table 29 Command output
Field Descri
p
tion
Local IP/port Private IP address and port number.
Global IP/port Public IP address and port number.
Local VPN
MPLS L3VPN instance to which the private IP address belongs. If no VPN is
specified, this field is not displayed.
Global VPN
MPLS L3VPN instance to which the public IP address belongs. If no VPN is
specified, this field is not displayed.