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ping ipv6
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ping ipv6
This command sends ICMP echo request packets to an IPv6 node on the network.
ping ipv6 address {ipv6-address | host-name} [size datagram-size |
repeat repeat-count | data hex-data-pattern | source source-address |
timeout seconds | verbose]
• ipv6-address - The IPv6 address of the device to ping. The address must
be formatted according to RFC 2373 “IPv6 Addressing Architecture,” using
8 colon-separated 16-bit hexadecimal values. One double colon may be
used in the address to indicate the appropriate number of zeros required to
fill the undefined fields.
• host-name - The name the IPv6 device to ping. A host name can be
resolved into an IPv6 address using DNS.
• datagram-size - Specifies the size of the datagram to send in each ping.
(Range: 48 - 18024 bytes)
• repeat-count - The number of pings to send. (Range: 1 - 2147483647)
• hex-data-pattern - The data pattern to send. (Range: 0 - FFFF)
• source-address - The source address or name to include in the ping. This
is normally set to an address assigned to the interface sending the ping.
• seconds - The timeout interval. (Range: 0 to 3600 seconds)
• verbose - Displays detailed output.
Default Setting
repeat - 5
timeout - 2 seconds
Command Mode
Normal Exec - The only command options are count and size.
Privileged Exec - All command options are available.
Command Usage
• Ping sends an echo request to the specified address, and waits for a reply.
Ping output can help determine path reliability, path delays, and if the host is
reachable or functioning.
• If the system cannot map an address for a host name, it returns the message
“Can not get address information for host,” or “protocol not running.”
• To terminate a ping session, type the escape sequence Ctrl-X.
• Using a timeout of zero seconds generates a flood ping, resulting in replies
that are received only from immediately adjacent routers (depending on the
utilization on the both the target and intermediate devices), the distance to the
remote device, and other factors.
• Not all protocols require hosts to support pings. For some protocols, only
another switch or router of the same type may respond to ping requests.
• Use the IPv4 ping command (page 59-5) for addresses that resolve to IPv4.