ping response not showing TTL - HP UX

This is a discussion on ping response not showing TTL - HP UX ; Hi all, When I ping (/usr/sbin/ping) a host from HP-UX 11i (B.11.11), the responses do not include the TTL value. Tried looking at the man page but could not find a way to show the TTL. Pls advise. Thanks! > ...

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Thread: ping response not showing TTL

  1. ping response not showing TTL

    Hi all,

    When I ping (/usr/sbin/ping) a host from HP-UX 11i (B.11.11), the
    responses do not include the TTL value.
    Tried looking at the man page but could not find a way to show the
    TTL. Pls advise.

    Thanks!

    > ping 192.168.210.15

    PING 192.168.210.15: 64 byte packets
    64 bytes from 192.168.210.15: icmp_seq=0. time=17. ms
    64 bytes from 192.168.210.15: icmp_seq=1. time=15. ms
    64 bytes from 192.168.210.15: icmp_seq=2. time=15. ms
    64 bytes from 192.168.210.15: icmp_seq=3. time=15. ms
    64 bytes from 192.168.210.15: icmp_seq=4. time=15. ms

    ----192.168.210.15 PING Statistics----
    5 packets transmitted, 5 packets received, 0% packet loss
    round-trip (ms) min/avg/max = 15/15/17

  2. Re: ping response not showing TTL

    arcs.ltee@googlemail.com wrote:
    > When I ping (/usr/sbin/ping) a host from HP-UX 11i (B.11.11), the
    > responses do not include the TTL value. Tried looking at the man
    > page but could not find a way to show the TTL. Pls advise.


    Short of porting another ping program, or submitting the enhancement
    request, you might use traceroute to get the hop-count between
    systems.

    You could also I suppose take a nettl or tcpdump trace of the traffic
    and inspect the IP headers directly.

    HP-UX 11.11 ping does seem to claim a -t option to set the TTL,
    ostensibly one could use that to binary search the hop count.
    However, my experiments with it on an 11.11 system suggested that
    while the -t option is mentioned it is a noop and ping or what it was
    using at least, was always setting the TTL to 255.

    rick jones
    --
    firebug n, the idiot who tosses a lit cigarette out his car window
    these opinions are mine, all mine; HP might not want them anyway...
    feel free to post, OR email to rick.jones2 in hp.com but NOT BOTH...

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