non operational question related to IP

David Coulson david at davidcoulson.net
Mon Nov 22 13:54:55 CST 2010


Prefixing the octet with 0 makes it interpret it as octal, not decimal.

Pretty typical on a UNIX system.

On 11/22/2010 2:52 PM, Greg Whynott wrote:
> i was pinging a host from a windows machine and made a typo which seemed harmless.  the end result was it interpreted my input differently than what I had intended.   thinking this was a m$ issue I quickly took the opportunity to poke fun at windows as the senior m$ admin was near by.
>
> "look at how brain dead this os is,  it can't even do simple math!"
>
> He is now looking at my screen scratching his head…..
>
> "watch,  i'll open a shell on os x and show you how it can add 0 +10"
>
> I open a shell on os x,  same behavior as windows.
>
> " ok so apple is brain dead too,  watch,  it'll work on linux!"
>
> same deal…
>
>
> long story short,  it does work as expected on all our hardware routing gear.    still not sure what is happening here…
>
>
> osx-gwhynott:~ gwhynott$ ping 10.010.10.1
> PING 10.010.10.1 (10.8.10.1): 56 data bytes
>
>
> gwhynott at ops:~$ ping 10.010.10.1
> PING 10.010.10.1 (10.8.10.1) 56(84) bytes of data.
>
>
> CORE1>ping 10.010.10.1
> Type escape sequence to abort.
> Sending 5, 100-byte ICMP Echos to 10.10.10.1, timeout is 2 seconds:
> !!!!!
>
>
> anyone happen to know how the OS's are interpreting the 010?   doesn't appear work out in base[2-10] (1010,101,22,20,14,13,12,11,10,A)
>
>
> thanks!
>
> greg
>
>
>
>
>
> --
>
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