Chapter 25
| IP Interface Commands
IPv6 Interface
– 629 –
size
- Number of bytes in a packet. (Range: 0-1500 bytes)
The actual packet size will be eight bytes larger than the size
specified because the router adds header information.
Default Setting
count: 5
size: 32 bytes
Command Mode
Privileged Exec
Command Usage
◆
Use the
ping6
command to see if another site on the network can be
reached, or to evaluate delays over the path.
◆
The same link-local address may be used by different interfaces/nodes in
different zones (RFC 4007). Therefore, when specifying a link-local
address, include zone-id information indicating the VLAN identifier after
the % delimiter. For example, FE80::7272%1 identifies VLAN 1 as the
interface from which the ping is sent.
◆
When pinging a host name, be sure the DNS server has been enabled
(see
). If necessary, local devices can also be specified in the
DNS static host table (see
).
◆
When using ping6 with a host name, the switch first attempts to resolve the
alias into an IPv6 address before trying to resolve it into an IPv4 address.
Example
Console#ping6 FE80::2E0:CFF:FE00:FC%1
Press ESC to abort.
PING to FE80::2E0:CFF:FE00:FC%1/64, by 5 32-byte payload ICMP packets,
timeout is 3 seconds
response time: 20 ms [FE80::2E0:CFF:FE00:FC] seq_no: 1
response time: 0 ms [FE80::2E0:CFF:FE00:FC] seq_no: 2
response time: 0 ms [FE80::2E0:CFF:FE00:FC] seq_no: 3
response time: 0 ms [FE80::2E0:CFF:FE00:FC] seq_no: 4
response time: 0 ms [FE80::2E0:CFF:FE00:FC] seq_no: 5
Ping statistics for FE80::2E0:CFF:FE00:FC%1/64:
5 packets transmitted, 5 packets received (100%), 0 packets lost (0%)
Approximate round trip times:
Minimum = 0 ms, Maximum = 20 ms, Average = 4 ms
Console#
traceroute6
This command shows the route packets take to the specified destination.
Syntax
traceroute6
{
ipv6-address
|
host-name
} [
max-failures
failure-
count
]
