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IPv6 Ping

To diagnose basic network connectivity using IPv6 to the specified address, enter the following command:

Router#ping ipv6 2001:db8::3/64

The following characters can be displayed as output when using PING in IPv6.

Character

Description

!

Each exclamation point indicates receipt of a reply.

.

Each period indicates that the network server timed out while waiting for a reply.

?

Unknown error.

@

Unreachable for unknown reason.

A

Administratively unreachable. Usually means that an access control list (ACL) is blocking traffic.

B

Packet too big.

H

Host unreachable.

N

Network unreachable (beyond scope).

P

Port unreachable.

R

Parameter problem.

T

Time exceeded.

U

No route to host.

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