CCIE Pursuit Blog

June 6, 2008

IPv6 Ping Test Characters

Filed under: Cisco,Cisco Certification,IOS,IPv6 — cciepursuit @ 12:45 pm
Tags: , ,

I recently posted about a strange ping return character:

r5(config-if)#do p 2001:173:1:57::7

Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 2001:173:1:57::7, timeout is 2 seconds:
Success rate is 0 percent (0/5)

Props to Geoff for pointing out that this is an IPv6 PING Character:

ping ipv6

Table 41 ping Test Characters (IPv6) 


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.


Administratively unreachable. Usually, this output indicates that an access list is blocking traffic.


Packet too big.


Host unreachable.


Network unreachable (beyond scope).


Port unreachable.


Parameter problem.


Time exceeded.


No route to host.


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