What is 127.0.0.2 for?
Jason
I know 127.0.0.1 is for localhost, but what is 127.0.0.2 for?
Thanks.
Jason
Jordan Aaronson
Ping any random numbers (under 255 of course) after 127 and you'll get a
reply.
Eric P. McCoy
> I know 127.0.0.1 is for localhost, but what is 127.0.0.2 for?
The local host.
--
Eric McCoy (reverse "ten.xoc@mpe", mail to "ctr2sprt" is filtered)
"Last I checked, it wasn't the power cord for the Clue Generator that
was sticking up your ass." - John Novak, rasfwrj
Jason Baugher
All 127.x.x.x numbers are reserved for loopback - not localhost. It's just
that most of the time you only see 127.0.0.1, so most people don't realize
that the entire range is for loopback.
--
Jason Baugher
Virtual Adept Professional Consulting Services
1406 Adams St.
Quincy, IL 62301
(217) 221-5406
http://baugher.pike.il.us/virtualadept
ja...@baugher.pike.il.us
James Knott
> "Jason" <JA...@ETC.ORG.TW> wrote in news:afor51$sbn$1...@news.seed.net.tw:
>
>> Hi,
>>
>> I know 127.0.0.1 is for localhost, but what is 127.0.0.2 for?
>> Thanks.
>>
>> Jason
>>
>>
>>
>
> All 127.x.x.x numbers are reserved for loopback - not localhost. It's
> just that most of the time you only see 127.0.0.1, so most people don't
> realize that the entire range is for loopback.
I wonder how many people need 16M loopback addresses?
--
All the facts above are true, except for the ones I made up.
To reply to this message, replace everything to the left of "@" with
james.knott.
linuxlover
> "Jason" <JA...@ETC.ORG.TW> wrote in news:afor51$sbn$1...@news.seed.net.tw:
>
> > Hi,
> >
> > I know 127.0.0.1 is for localhost, but what is 127.0.0.2 for?
> > Thanks.
> >
> > Jason
> >
> >
> >
>
> All 127.x.x.x numbers are reserved for loopback - not localhost. It's just
> that most of the time you only see 127.0.0.1, so most people don't realize
> that the entire range is for loopback.
Hi~~
Your meaning is all range is for loopback?
(from 127.0.0.1 to 127.0.0.255). I got it. But
One curiosity is the difference of "loopback" and "localhost".
Let me KNOW their differences.
-----------------------------------------------------------------------------
http://searchnetworking.techtarget.com
loopback:
In telephone systems, a loopback is a test signal sent to a network
destination that is returned as received to the originator. The returned
signal may help diagnose a problem. Sending a loopback test to each
telephone system piece of equipment in succession, one at a time, is
a technique for isolating a problem. (The loopback can be compared to
the Internet's ping utility, which lets you send a message out to a host
computer on the Internet. The ping echo tells you whether or not the host
computer is available and the time the signal took to return.)
If you are an ISDN user with more than one B-channel, you can do a loopback
test from your computer.
-----------------------------------------------------------------------------
###############################################
suandyou (linuxlover)
SPCC, Sept. of Physics
Univ. of Seoul
Republic of KOREA
e-mail adds : suandy...@hanmail.net
linux...@sidae.uos.ac.kr
##############################################
Eric P. McCoy
> Your meaning is all range is for loopback?
> (from 127.0.0.1 to 127.0.0.255).
No, the entire network 127/8 goes through the loopback device: from
127.0.0.0 through 127.255.255.255.
> I got it. But One curiosity is the difference of "loopback" and
> "localhost". Let me KNOW their differences.
"Loopback" refers to the type of connection. "localhost" is the
typical name for an IP address accessible via the loopback device.
James Knott
>> All 127.x.x.x numbers are reserved for loopback - not localhost. It's
>> just that most of the time you only see 127.0.0.1, so most people don't
>> realize that the entire range is for loopback.
>
>
> Hi~~
>
> Your meaning is all range is for loopback?
> (from 127.0.0.1 to 127.0.0.255). I got it. But
> One curiosity is the difference of "loopback" and "localhost".
> Let me KNOW their differences.
>
Actually, it's 127.0.0.0 to 127.255.255.255 or about 16M addresses.
Peter Wu
news:afor51$sbn$1...@news.seed.net.tw...
> Hi,
>
> I know 127.0.0.1 is for localhost, but what is 127.0.0.2 for?
localhost loopback
John Martin
>
> All 127.x.x.x numbers are reserved for loopback - not localhost. It's just
> that most of the time you only see 127.0.0.1, so most people don't realize
> that the entire range is for loopback.
Using 'ethereal' I see a particular host on our intranet sending messages
with the 'protocol' filed described as 'loopback'.
If as described, 'loopback' is for testing 'localhost' why does anything
appear on the lan for 'ethereal' to capture?
--
John
Larry Tovar A.
> "Jason" <JA...@ETC.ORG.TW> wrote in news:afor51$sbn$1...@news.seed.net.tw:
>
> > Hi,
> >
> > I know 127.0.0.1 is for localhost, but what is 127.0.0.2 for?
> > Thanks.
> >
> > Jason
>
> All 127.x.x.x numbers are reserved for loopback - not localhost. It's just
> that most of the time you only see 127.0.0.1, so most people don't realize
> that the entire range is for loopback.
In which case loopback is not localhost? 127.0.0.2 may be a different
host?
Why a class A network (8 bits netmask) is reserved for localdomain?
Thanks