IP Question

MAGIC Quantum Mechanic
MAGIC Quantum M...
Joined: 18 Jan 05
Posts: 1,272
Credit: 387,988,924
RAC: 97,903
Topic 189256

Why would one of my pc's say it is connected to the wrong IP?

By that I mean when I click on "IP address Show IP address" it shows one that is not close to being mine.

(I just checked again and now all 3 of my dialup pc's are showing that same wrong IP address)

(The 4th one is still correct though)

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alex
alex
Joined: 18 Jan 05
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IP Question

What are you checking your IP addy with? (ie, samspade.org or network-tools.com remote IP address check.)
When a dial up connection is not connected to the web, your Microsoft operating system assigns itself a default number.
I think it's 169.something....

Something that can cause a 3rd party web site to display a different IP address than what your pc thinks is it's IP address is if your web browser uses a proxy to connect to the net . Usually, it's a ISP level proxy, and can include ad blocking proxies, or it's the 'download accellerator' which makes your jpeg images much smaller on the proxy server level.

MAGIC Quantum Mechanic
MAGIC Quantum M...
Joined: 18 Jan 05
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Well you know when you check

Message 11953 in response to message 11952


Well you know when you check on your own page with your list of computers being used here only you can see "show IP address" on the page and for the first few months when I checked mine it was the local dialup IP that I have had here for years but the last couple weeks it shows an IP that is not my dialup IP (or any type of dialup IP)

I still get the credits but it just seemed strange that the one changed and then the other 2 just today.

My 4th one is on cable and it never has changed.

And I haven't changed anything on my pc's lately.

(and I only check here when dialed up and it says 127.something now)


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Sharky T
Sharky T
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(and I only check here when

Message 11954 in response to message 11953


(and I only check here when dialed up and it says 127.something now)

Maybe I'm wrong here but,isn't a IP number starting with 127 reserved for loopback testing in local computer? :/


Paul D. Buck
Paul D. Buck
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127.0.0.1 is

127.0.0.1 is loopback

192.168.x.y is one of the more common starts for local networks. If your ISP is on the ball they will not allow external connections to these addresses.

Usually if you have a router connecting to the WAN the router will do NAT (Network Address Translation) to whatever address your ISP has assgned to you. Also, depending on the ISP this can be a fixed number that is yours all the time, or one that changes ...

MAGIC Quantum Mechanic
MAGIC Quantum M...
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Credit: 387,988,924
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Well the 3 pc's that started

Message 11956 in response to message 11955

Well the 3 pc's that started doing this are the ones I have on a dialup in the same room without a router (they have always been running that way)the 4th one on cable always shows the proper one.

Now each of the dialup ones are showing that 127..... and they say they have been that for the last 300-400 times which is not correct since it used to actually show my dialup IP _ _ _._ _ _._ _ _.then the number which applied to me added on the end which of course changes each time you dialup.

Btw Paul,as far as my ISP being on the ball......they pretty much aren't and in fact they got hacked and crashed on friday the 13th this month for 4 days and that may be the day this thing started now that you mention that

127.0.0.1 is loopback

192.168.x.y is one of the more common starts for local networks. If your ISP is on the ball they will not allow external connections to these addresses.

Usually if you have a router connecting to the WAN the router will do NAT (Network Address Translation) to whatever address your ISP has assgned to you. Also, depending on the ISP this can be a fixed number that is yours all the time, or one that changes ...

 

Walt Gribben
Walt Gribben
Joined: 20 Feb 05
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127.0.0.1 is the local IP

127.0.0.1 is the local IP address of a machine, every system with networking installed has it. Any other IP address you see is actually the address assigned to a network adapter.

BOINC looks up the IP address when it starts, perhaps it gets 127.0.0.1 because there aren't any network connectins established. Actually, BOINC just uses whatever Windows Networking returns, it gets the system name and then looks up the IP address that goes with it. A gethostname followed by a gethostbyname.

Did you change your network configuration around the time the IP address changed? Like maybe remove an unused network adapter?

Two things you can do

1) list the network configuration. At a command prompt enter:

ipconfig /all

and see what devices and IP addresses show up. Do this before establishing a dial-up connection and again after you establish one. Whats different?

2) Connect to your ISP before starting BOINC. Preferably when BOINC needs to upload some results. That way theres a network device with an assigned IP address when BOINC starts. Then look in the client_state.xml file to see the host name and IP address it found.

Paul D. Buck
Paul D. Buck
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Thanks for the

Message 11958 in response to message 11956


Thanks for the replies........and also your website is nice Paul......in fact I think I will take a look at it again right now.

You are welcome ... I do try to please. :)

Sharky T
Sharky T
Joined: 19 Feb 05
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Credit: 1,173,301
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Found this on the net:

Found this on the net:

+----------------+-------------------------------------------------+
|IP Address | Description |
+----------------+-------------------------------------------------+
+----------------+-------------------------------------------------+
> |127.xxx.xxx.xxx | Local loopback address. The value of the last |
> | | 3 bytes are ignored. The datagram with this IP |
> | | address is never transmitted over the network. |
+----------------+-------------------------------------------------+

I tried to ping with 127.5.3.7 and it converted it to 127.0.0.1 and
gave me an OK. So I think Walt might be on to something here. :)


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