Comments for

Comment from Marcial on 2011-01-18

2011-01-18T22:01:34Z

An IP range is given for exemple 10.110.5.248/32. This means??? Help....

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Comment from Tim on 2010-04-03

2010-04-03T21:32:15Z

Linda ("how do i find my subnet mask number"):

If using Windows VISTA just click once on the little circle in the lower left corner.
Then in 'start search' type RUN.
It will prompt "open" type CMD.
That will prompt a DOS window.
Type: IPCONFIG
Press Enter and all your info will appear.

In Windows XP
just click once on the little START button in the lower left corner.
Then click on RUN.
It will prompt a DOS window.
Type: IPCONFIG
Press Enter and all your info will appear.

Good Luck

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Comment from Linda on 2010-03-14

2010-03-15T00:41:38Z

how do i find my subnet mask number. i'm trying to connect my sons x-box onto my router and i need my subnet mask number and gateway
PLEASE HELP!!!

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Comment from Devin on 2010-02-15

2010-02-16T00:57:49Z

I have one that says can't find network location.

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Comment from FL Wilson on 2010-01-26

2010-01-26T19:31:13Z

Onbard a boat, I have multiple computers connected to the Lan side of a Router (192.168.133.241/ 255.255.255.240 DHCP on 242-250) and a wireless Bridge (DHCP off) connected to the WLAN side of the Router (DHCP client from whoever the Bridge connects with on land). I want the computers on the Lan side of the Router to have access to each other, to the internet (through the WAN port to the Bridge) and (HERE IS THE PROBLEM) to the BRIDGE itself (currently 192.168.133.192 on the router side. Except for the last step all of this works properly.Please help

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Comment from tirumala on 2010-01-25

2010-01-25T14:32:25Z

A man TQ i undustand this but i want how to claluc

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Comment from Luc on 2009-08-13

2009-08-14T02:11:53Z

"The day you stop learning is the day you start becoming obsolete."

Thank you Leo for taking the time to shed some Light on these,[Quote]...translation; the internet's a complicated world. [/Quote]
So true.
And I also thank you for the links U provided 4 further reading on,,,

A+
Luc from Montreal, Qc, Canada

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Comment from anathea on 2009-05-29

2009-05-29T17:57:35Z

how do i find my subnet mask number. i'm trying to log onto my router and i need my subnet mask number, gateway, dns 1 and dns 2 numbers
PLEASE HELP!!!
[email address removed]

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Comment from tsepang on 2009-05-29

2009-05-29T12:04:49Z

good info indeed..but im pretty much confuzd on the binary numbers how do u convert into those?

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Comment from Alabaster on 2009-01-16

2009-01-17T05:00:35Z

Thank you for this! I'm in CCNA, and I've known how to subnet, and how to do the number crunching, but I just couldn't figure out what the mask actually DID...Pretty bad, I know. Awesome tutorial though, pretty sure I understand now

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Comment from evan rees on 2008-10-13

2008-10-13T20:01:13Z

im very confused with your explanation of subnet masks if i provide you my ip address could you please work out my subnet mask 78.145.35.16. thank you very much.

I can't. That's information that has to come from whomever provides your network connection.

- Leo
14-Oct-2008

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Comment from Terry Rhodes on 2008-10-10

2008-10-10T20:51:43Z

where can i find the sub mask, gateway, the dns1 and dns2 at please help

Depends on the situation. It's normally provided by whomever provides the network you are attempting to connect to.

- Leo
11-Oct-2008

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Comment from Robert Reeks on 2007-10-18

2007-10-18T14:11:28Z

Open a command prompt and type
ipconfig /all
this will tell you or IP settings, default gateway IP, etc...

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Comment from Alex on 2007-08-29

2007-08-29T15:32:56Z

Is the network mask the same as the subnet mask ?

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Comment from e.solomon on 2007-06-12

2007-06-12T10:40:59Z

quit good info keep it up leo

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Comment from jake aleck on 2007-06-11

2007-06-11T21:30:54Z

how do i get to know what my subnet mask is and my gateway is

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Comment from billy r.johnson on 2007-06-02

2007-06-03T03:04:02Z

what is my subnte mask,gateway,dns1,and dns2,please help.

billy ray

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Comment from artcoding on 2007-05-30

2007-05-30T07:34:36Z

I think it's about using AND logic operator on every bit. 1*1=1, 0*1 = 0, 1*0=0, 0*0=0. Apply this on both ip#1 and ip#3 and see that results are different. In other words, the bits on 1 in the subnet mask says where the received packet address should be the same with the local address.

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Comment from anonymous( very confused person) on 2007-04-26

2007-04-26T23:31:58Z

im compltely and thourly confused how do u get from having the 3 ip adress and the subnet mask to tell that their on the same subnet?
is it just b/c the the first number in the 3rd octet for #1 and 2 is 0 while on #it starts w/ 1?

Basicly what im asking is u said "If we do the masking and converting and other what-have-you, " at one part. could u show what the "converting and other what-have-you," b/c i basily have to be able to do a few wxample problems like this for my class and i have no clue what u did

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Comment from Leo Notenboom on 2007-04-02

2007-04-02T16:24:40Z

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Ask your ISP.

Leo
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.6 (MingW32)

iD8DBQFGES5vCMEe9B/8oqERAhTTAJ99A8kNbPIZTLJwlU2MuD1AVcpp8wCdHN8H
UuwQ3kTSohohCWprzH7OzPI=
=KWce
-----END PGP SIGNATURE-----

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Comment from allen on 2007-04-01

2007-04-02T03:05:26Z

how do i find my subnet mask, gateway, and dns settings for my internet

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Comment from Leo Notenboom on 2006-12-07

2006-12-08T01:53:16Z

Normally that's all information the router will get automatically from your ISP, OR your ISP will have to provide to you.

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Comment from Terry on 2006-12-02

2006-12-02T20:48:50Z

I just bought a router and its asking me for my IP address, Subnet mask, Gateway, and DNS1 and DNS2. Could you help me find those?

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Comment from Tim on 2006-11-27

2006-11-27T19:33:44Z

Subnet is broken down into 4 parts called octets (255.255.255.255) each 255 is an octet. Each octet is broken down into 8 bits which are either turned on (1) or off (0). Here is where 255 comes from: (8 bits) 1 1 1 1 1 1 1 1 <-- 8 bits all turned on, still following? The bits break down like this 128 64 32 16 8 4 2 1 <-- breakdown of what the bits stand for, still following? All bits turned on = 128 + 64 + 32 + 16 + 8 + 4 + 2 + 1 = 255 If the subnet mask was 255.255.255.248 the bits would look like this 11111111.11111111.11111111.11111000 (128 + 64 + 32 + 16 + 8 = 248) you don't need the last three bits so they are turned off. Hope this helps, I'm not a teacher but this is the best I could do to try to explain it.

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Comment from tyler on 2006-11-26

2006-11-26T09:17:46Z

How do i easily convert binary numbers to decimal, vice versa. I can do with my calculator, but have no clue how to manually. I googled it, but I just can't understand it.

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Comment from howards on 2006-10-25

2006-10-25T09:48:14Z

Leo, how will you determine the number of possible subnet masks available and the number of possible hosts available on the subnetwork?

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Comment from spencer on 2006-10-11

2006-10-12T00:32:09Z

i still dont know how to find my subnet mask on my labtop after i did all of these

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Comment from Katy on 2006-10-04

2006-10-05T01:15:46Z

Thank you SO MUCH for the DOS help-- It saved me HOURS of time on the phone with my ISP!

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Comment from Tom on 2006-09-12

2006-09-13T01:40:47Z

Leo, you ROCK!!!!

You just saved me a ton of headaches with the ipconfig /all tip!!

Thanks so much!!!

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Comment from Leo Notenboom on 2006-08-23

2006-08-24T03:03:51Z

If you have a dynamic IP address, they should be set up automatically. Otherwise you get them from your ISP.

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Comment from MIKEY on 2006-08-23

2006-08-24T01:16:33Z

how do i get my primary and my secondary dns

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Comment from palden kyab on 2006-07-29

2006-07-29T18:32:01Z

To find your IP-adress, Subnet Mask, Gateway, Primary DNS and Secondary DNS, do the following
click START -> RUN -> (type cmd in the text box on the RUN, click OK!) -> ipconfig /all (type it in the command prompt!)-> you got what you wanted!

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Comment from Morph on 2006-07-14

2006-07-14T14:21:27Z

Hi,
I need to find my IP-adress, Subnet Mask, Gateway, Primary DNS and Secondary DNS of my router to make a wireless connection. can you help me find em?

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Comment from Kasumurthy Somu on 2006-06-24

2006-06-24T07:04:13Z

Hi sir it is very nice but u can explen it. very esy way plz. how to we caluculet very esy way plz explen sir.

tanks

somu

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Comment from Lee on 2006-03-08

2006-03-08T18:17:57Z

what is the purpose of subnet masks?

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Comment from Muhammad Ismail on 2006-02-18

2006-02-19T06:24:02Z

dear sir how can i calculat the subnet mask and what would be the subnet mask of the following Destination Addresses
182.220.10.4
121.10.3.4
140.10.34.30
164.9.2.1
220.64.32.4
92.1.3.8

waiting for your positive response.
best regards

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Comment from Mike on 2006-02-10

2006-02-10T17:36:45Z

i can prevent users accessing my computer using firewall settings for IP address and a subnet mask.
does that mean i can use the subnet mask to limit access to certain geographic areas ?

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Comment from Raju on 2005-12-26

2005-12-27T05:22:04Z

hello,

i need know what is the meaning of subnet mask in the network standard.

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Comment from Leo A. Notenboom on 2005-10-28

2005-10-28T16:42:17Z

That tool will not tell you what your subnet should be. It's simply a calculator that assists in determining the values to use. You still need to know, and enter, the details of your network configuration by hand ... including what the subnet characteristics are.

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Comment from hugo on 2005-10-27

2005-10-27T17:55:19Z

here is free subnet calculator- find your subnet in a snap!!
http://www.wildpackets.com/products/free_utilities/ipsubnetcalc/overview

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Comment from Leo on 2005-09-18

2005-09-18T22:39:45Z

On the internet side, it's something you should get from your ISP.

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Comment from tom on 2005-09-17

2005-09-18T01:52:45Z

How do I find my subnet mask. I'm trying to ser up a router?

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Comment from Leo on 2005-07-26

2005-07-26T23:22:42Z

192.168 mean that you're behind a router, and could be anywhere on the planet.

Mike was just using it as an example, he didn't mean specificly that IP addresses implied physical location to that degree.

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Comment from pheifdog on 2005-07-26

2005-07-26T22:09:26Z

hi mike. if what you said is true you live very close to me because my ip address is 192.168.0. not saying the rest. and my friend had 192.168.1. not telling rest but we live in the same town. i dont think that the third number means city.

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Comment from Leo on 2005-07-01

2005-07-02T04:49:47Z

They don't even have to play with the subnet mask. An unsecured wireless network can be used by anyone close enough to get a signal.

In cases like that, I strongly suggest enabling WEP, or "Wired Equivalent Privacy" on your wireless networks. It takes a little doing, and education.

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Comment from Cindy on 2005-07-01

2005-07-01T13:53:10Z

We have a dsl service that splits in our home and my husband uses one and myself the other on my computer for internet access. When I click on the icon it shows me surrounding area wireless users. Some with Secure Access and others with Unsecure access. In a discussion with neighbors, there is a concern that someone can get access into the computer by somehow overriding the subnet mask (router #'s). Is that even possible and should we be concerned or take any precautions to prevent it?

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Comment from ray on 2004-11-12

2004-11-12T11:02:37Z

hi i'm just getting into subnet masking, but i still don't get it, is there any where which explain's this in a more simple way
thanks

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Comment from Mike on 2004-09-29

2004-09-30T04:20:54Z

This may be the wrong thread for this, but....

This is the analogy I use for people when I try and explain ip addys... Lets use the default ip for home networks, 192.168.1.1, and actual street addresses as an example.

192 = the country you live in
168 = the state you live in
1 = the city you live in
the second 1 = your actual street address

If you have an address of 192.168.1.1 and you send a letter to your neighbor, they would (theroiectily) have an ip address of 192.168.1.2
When the mail man picks up your letter to deliver it (acting like a router), he would look at the ip addy and see that the address is on the same street, so there would be no need to take it back to the office and send it to the recipient... He could simply walk next door and drop it off himself and it would get there very fast.

If you were sending a letter to the next city over, but they have the same street address as you... say 192.169.1.1 the mail man (router) would know to bring the letter back to the office and "route" it from there to the next city over and in turn, to the actual street address.

So on and so on up the line for country (192) and state (168).

That's the best way I've found to explain it. Bringing dynamic ip's (mobile homes) into the picture makes things a little more difficult.

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Comment from Leo on 2004-09-06

2004-09-07T04:29:19Z

There's always a subnet mask, so seeing one doesn't really tell you anyting about the presence of any other computers on the network.

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Comment from Kirsten on 2004-09-06

2004-09-07T03:58:16Z

Hi. I am supposedly on a two computer network in my home, but have a subnet mask address. Does this mean there is at least one other computer involved? I ask because I believe that there is another one involved in a situation where my internet activities are actually being monitored from a computer outside my home.

Your explanation was the only one of the ones on the internet that I could understand. Thank you for using the analogy.

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Comment from Rohit Mehta on 2004-07-21

2004-07-21T10:06:53Z

What is a subnet mask. How we define it and whz it purpose in network.

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Comment from hung on 2004-07-19

2004-07-19T12:26:42Z

tell me how to devise subnet? thanks

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Comment from Anonymous on 2004-06-29

2004-06-29T07:05:01Z

i like this site

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Comment from dave haynes on 2004-06-21

2004-06-21T14:23:09Z

according to the tech guy at verizon my "ppp subnet mask' has been changed to all 255's by what he refered to as a fragment of some sort of spyware, now my computer apparently tries to log onto itself and after a few minutes my internet just crawls because of the lag. is there any way i can change that subnet mask back to another figure, the other two subnets are set to 255.255.0.0.
any help would be appreciated

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Comment from Gannon on 2004-06-15

2004-06-16T05:57:30Z

Good. All the other places confused me

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Comment from Leo on 2004-06-10

2004-06-10T22:18:19Z

I'd need to know a lot more about your network setup, but 95% chance it's 255.255.255.0.

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Comment from paul on 2004-06-10

2004-06-10T17:13:00Z

can u help, im tryin to set upmy xbox live and its askin me 4 my subnet mask .how do i find this

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Comment from anon on 2004-04-10

2004-04-10T17:36:14Z

Best explanation I've ever seen on the subject!
I just now went from "what the heck is that all about, let's just use 255.255.255.0" to "AHA.. Now I get it !!" (but will for now still use 255.255.255.0 :-) )...
Thank you so much for clearing this up ;-)

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