CCIE Pursuit Blog

June 5, 2008

HHHHHuh!?!

Filed under: Cisco,Cisco Certification,IOS — cciepursuit @ 6:08 pm
Tags: , ,

This one has me stumped.  I’ve never seen a ping return code of ‘H’ before:

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:
HHHHH
Success rate is 0 percent (0/5)

Has anyone else run across this?  What does it mean?

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3 Comments »

  1. Hi – Means IPV6 Host unreachable. It would seem that the IOS is smart enough to interpret your p as ping ipv6
    see http://www.cisco.com/en/US/docs/ios/ipv6/command/reference/ipv6_10.html#wp2127501
    Great Blog BTW.

    Comment by Geoff — June 5, 2008 @ 6:38 pm | Reply

  2. @Geoff – Thank you! I tried to Google this and didn’t find it. I’m a little embarrassed that I didn’t think to hit the DOC CD. 🙂

    Comment by cciepursuit — June 5, 2008 @ 8:06 pm | Reply

  3. […] Certification, IOS, IPv6 — cciepursuit @ 12:45 pm Tags: CCIE, Cisco, Cisco Certification I recently posted about a strange ping return […]

    Pingback by IPv6 Ping Test Characters « CCIE Pursuit — June 6, 2008 @ 12:45 pm | Reply


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