HP VPN Firewall Appliances Network Management Command Reference

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Usage guidelines
If you do not specify the null keyword, this command displays information about all interfaces on the
device.
If you specify the null keyword, this command displays information about interface Null 0 with or without
the 0 keyword, because the device supports only one null interface.
Examples
# Display detailed information about interface Null 0.
<Sysname> display interface null 0
NULL0 current state :UP
Line protocol current state :UP (spoofing)
Description : NULL0 Interface
The Maximum Transmit Unit is 1500
Internet protocol processing : disabled
Physical is NULL DEV
Last clearing of counters: Never
Last 300 seconds input rate: 0 bytes/sec, 0 bits/sec, 0 packets/sec
Last 300 seconds output rate: 0 bytes/sec, 0 bits/sec, 0 packets/sec
0 packets input, 0 bytes, 0 drops
0 packets output, 0 bytes, 0 drops
# Display brief information about interface Null 0.
<Sysname> display interface null 0 brief
The brief information of interface(s) under route mode:
Link: ADM - administratively down; Stby - standby
Protocol: (s) - spoofing
Interface Link Protocol Main IP Description
NULL0 UP UP(s) --
See Table 8 for the display interface null command output.
Related commands
interface null
interface loopback
Use interface loopback to create a loopback interface or enter loopback interface view.
Use undo interface loopback to remove a loopback interface.
Syntax
interface loopback interface-number
undo interface loopback interface-number
Views
System view
Default command level
2: System level