116 Brocade ICX 6650 Administration Guide
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IPv6 management on Brocade ICX 6650 devices (IPv6 host support)
5
As an example, in a configuration where ftp6.companyA.com is a server with an IPv6 protocol
stack, when a user pings ftp6.companyA.com, the Brocade device attempts to resolve the AAAA
DNS record. In addition, if the DNS server does not have an IPv6 address, as long as it is able to
resolve AAAA records, it can still respond to DNS queries.
Pinging an IPv6 address
NOTE
This section describes the IPv6 ping command. For details about IPv4 ping, refer to “Pinging an IPv4
address” on page 69.
The ping command allows you to verify the connectivity from a Brocade device to an IPv6 device by
performing an ICMP for IPv6 echo test.
For example, to ping a device with the IPv6 address of 2001:DB8:847f:a385:34dd::45 from the
Brocade device, enter the following command.
Brocade#ping ipv6 2001:DB8:847f:a385:34dd::45
Syntax: ping ipv6 <ipv6-address> [outgoing-interface [<port> | ve <number>]] [source
<ipv6-address>] [count <number>] [timeout <milliseconds>] [ttl <number>] [size
<bytes>] [quiet] [numeric] [no-fragment] [verify]
[data <1-to-4 byte hex>] [brief]
•The <ipv6-address> parameter specifies the address of the router. You must specify this
address in hexadecimal using 16-bit values between colons as documented in RFC 2373.
•The outgoing-interface keyword specifies a physical interface over which you can verify
connectivity. If you specify a physical interface, such as an Ethernet interface, you must also
specify the port number of the interface. If you specify a virtual interface, such as a VE, you
must specify the number associated with the VE.
•The source <ipv6-address> parameter specifies an IPv6 address to be used as the origin of
the ping packets.
•The count <number> parameter specifies how many ping packets the router sends. You can
specify from 1 - 4294967296. The default is 1.
•The timeout <milliseconds> parameter specifies how many milliseconds the router waits for a
reply from the pinged device. You can specify a timeout from 1 - 4294967296 milliseconds.
The default is 5000 (5 seconds).
•The ttl <number> parameter specifies the maximum number of hops. You can specify a TTL
from 1 - 255. The default is 64.
•The size <bytes> parameter specifies the size of the ICMP data portion of the packet. This is
the payload and does not include the header. You can specify from 0 - 4000. The default is 16.
•The no-fragment keyword turns on the "do not fragment" bit in the IPv6 header of the ping
packet. This option is disabled by default.
•The quiet keyword hides informational messages such as a summary of the ping parameters
sent to the device, and instead only displays messages indicating the success or failure of the
ping. This option is disabled by default.
•The verify keyword verifies that the data in the echo packet (the reply packet) is the same as
the data in the echo request (the ping). By default the device does not verify the data.