HP VPN Firewall Appliances System Management and Maintenance Command Reference

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-s packet-size: Specifies the length (in bytes) of ICMPv6 echo requests (excluding the IPv6 packet header
and the ICMPv6 packet header). The value range is 20 to 8100, and the default is 56.
-t timeout: Specifies the timeout time (in milliseconds) of an ICMPv6 echo reply. The value range is 0 to
65535, and the default is 2000.
host: Specifies the IPv6 address or host name of the destination. The host name is a case-insensitive string
of 1 to 255 characters,
-i interface-type interface-number: Specifies the source interface of ICMPv6 echo requests. This option
must be specified when the destination address is a multicast address or a link local address. Without this
option, the system uses the primary IP address of the matching route's egress interface as the source
interface of ICMP echo requests.
-vpn-instance vpn-instance-name: Specifies the VPN instance to which the destination belongs, where
vpn-instance-name is a case-sensitive string of 1 to 31 characters. If the destination is on the public
network, do not specify this option.
Usage guidelines
To use the name of the destination host to perform the ping IPv6 operation, configure DNS on the device
first. Otherwise, the ping IPv6 operation fails. For more information about DNS, see Network
Management Configuration Guide.
To abort the ping IPv6 operation during the execution of the command, press Ctrl+C.
Examples
# Verify whether the IPv6 address 2001::1 is reachable.
<Sysname> ping ipv6 2001::1
PING 2001::2 : 56 data bytes, press CTRL_C to break
Reply from 2001::1
bytes=56 Sequence=1 hop limit=64 time = 62 ms
Reply from 2001::1
bytes=56 Sequence=2 hop limit=64 time = 26 ms
Reply from 2001::1
bytes=56 Sequence=3 hop limit=64 time = 20 ms
Reply from 2001::1
bytes=56 Sequence=4 hop limit=64 time = 4 ms
Reply from 2001::1
bytes=56 Sequence=5 hop limit=64 time = 16 ms
--- 2001::2 ping statistics ---
5 packet(s) transmitted
5 packet(s) received
0.00% packet loss
round-trip min/avg/max = 4/25/62 ms
# Verify whether the IPv6 address 2001::1 in VPN 1 is reachable.
<Sysname> ping ipv6 –vpn-instance vpn1 2001::1
PING 2001::1 : 56 data bytes, press CTRL_C to break
Reply from 2001::1
bytes=56 Sequence=1 hop limit=64 time = 62 ms
Reply from 2001::1
bytes=56 Sequence=2 hop limit=64 time = 26 ms