HP VPN Firewall Appliances System Management and Maintenance Command Reference

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-p pad: Specifies the value of the pad field in an ICMP echo request, in hexadecimal format, 1 to 8 bits,
in the range 0 to ffffffff. If the specified value is less than 8 bits, 0s are added in front of the value to
extend it to 8 bits. For example, if pad is configured as 0x2f, then the packets are padded with
0x0000002f repeatedly to make the total length of the packet meet the requirements of the device. By
default, the padded value starts from 0x01 up to 0xff, where another round starts again if necessary, like
0x010203…feff01….
-q: Displays only statistics. If this keyword is not specified, the system displays all information.
-r: Records routing information. If this keyword is not provided, routes are not recorded.
-s packet-size: Specifies the length (in bytes) of ICMP echo requests (excluding the IP packet header and
the ICMP packet header). The value range is 20 to 8100, and the default is 56.
-t timeout: Specifies the timeout time (in milliseconds) of an ICMP echo reply. The value range is 0 to
65535, and the default is 2000. If the source does not receive an ICMP echo reply within the timeout,
it considers the ICMP echo reply timed out.
-tos tos: Specifies the ToS value of ICMP echo requests. The value range is 0 to 255, and the default is
0.
-v: Displays non-ICMP echo reply packets. If this keyword is not specified, the system does not display
non-ICMP echo reply packets.
-vpn-instance vpn-instance-name: Specifies the instance to which the destination belongs, where the
vpn-instance-name argument is a case-sensitive string of 1 to 31 characters. If the destination is on the
public network, do not specify this option.
host: Specifies the IP address or host name of the destination. The host name is a case-insensitive string
of 1 to 255 characters.
Usage guidelines
With the ping command executed, the source sends an ICMP echo request to the destination:
• If the destination name is unrecognizable, the system outputs "Error: Ping: Unknown host
host-name".
• If the source receives an ICMP echo reply from the destination within the timeout time, the system
outputs the related information of the reply.
• If the source does not receive an ICMP echo reply from the destination within the timeout time, the
system outputs "Request time out."
To use the name of the destination host to perform the ping operation, you must first configure the DNS
on the device. Otherwise, the ping operation will fail. For more information about DNS, see Network
Management Configuration Guide.
To abort the ping operation during the execution of the command, press Ctrl+C.
Examples
# Test whether the device with an IP address of 1.1.2.2 is reachable.
<Sysname> ping 1.1.2.2
PING 1.1.2.2: 56 data bytes, press CTRL_C to break
Reply from 1.1.2.2: bytes=56 Sequence=1 ttl=254 time=205 ms
Reply from 1.1.2.2: bytes=56 Sequence=2 ttl=254 time=1 ms
Reply from 1.1.2.2: bytes=56 Sequence=3 ttl=254 time=1 ms
Reply from 1.1.2.2: bytes=56 Sequence=4 ttl=254 time=1 ms
Reply from 1.1.2.2: bytes=56 Sequence=5 ttl=254 time=1 ms