IP Address Range - what does this mean?
482467
21 is the subnet mask and not the port no.. For more info on IP address go to \n\nwww.learntosubnet.com
1121431
Depends on where the IP is coming from.  If you are part of a network it may be just a request from a computer within your own network.  It could be a probe from your ISP or communication from a program you are using to a server on the Internet etc.  Some of these are harmless but others could be downright hostile.  If you are on a broadband connection make sure you have a hardware router with a firewall in place for added protection.
219558
just to add to the first answer, /24 means 24 binary positions used for subnet.\n\neach segment of your IP address are representing binary bits. \n\nlets say 192.168.1.20 =11000000.10100000.00000001.00010100\n\nso in a subnet maskif it says 24 in bynary it looks like this:\n\n11111111.11111111.11111111.00000000\nwhich is:\n255.255.255.0\nthe amount of 1´s is 24.\n\nlet´s look at 27:\n11111111.11111111.11111111.11100000\nwhich is:\n255.255.255.224\n\nI don´t know if you needed this info but I thought it might help you see that you don´t need it for DNS.
400214
Function, NO...Desciption below....\nEvery machine on the Internet has a unique identifying number, called an IP Address. A typical IP address looks like this: \n\n216.27.61.137 \nTo make it easier for us humans to remember, IP addresses are normally expressed in decimal format as a "dotted decimal number" like the one above. But computers communicate in binary form. Look at the same IP address in binary: \n\n\n11011000.00011011.00111101.100... \nThe four numbers in an IP address are called octets, because they each have eight positions when viewed in binary form. If you add all the positions together, you get 32, which is why IP addresses are considered 32-bit numbers. Since each of the eight positions can have two different states (1 or 0) the total number of possible combinations per octet is 28 or 256. So each octet can contain any value between 0 and 255. Combine the four octets and you get 232 or a possible 4,294,967,296 unique values! \n\nOut of the almost 4.3 billion possible combinations, certain values are restricted from use as typical IP addresses. For example, the IP address 0.0.0.0 is reserved for the default network and the address 255.255.255.255 is used for broadcasts. \n\nThe octets serve a purpose other than simply separating the numbers. They are used to create classes of IP addresses that can be assigned to a particular business, government or other entity based on size and need. The octets are split into two sections: Net and Host. The Net section always contains the first octet. It is used to identify the network that a computer belongs to. Host (sometimes referred to as Node) identifies the actual computer on the network. The Host section always contains the last octet. There are five IP classes plus certain special addresses: \n\n\nDefault Network - The IP address of 0.0.0.0 is used for the default network. \n\nClass A - This class is for very large networks, such as a major international company might have. IP addresses with a first octet from 1 to 126 are part of this class. The other three octets are used to identify each host. This means that there are 126 Class A networks each with 16,777,214 (224 -2) possible hosts for a total of 2,147,483,648 (231) unique IP addresses. Class A networks account for half of the total available IP addresses. In Class A networks, the high order bit value (the very first binary number) in the first octet is always 0. \nNet Host or Node \n115. 24.53.107 \n\n\n\nLoopback - The IP address 127.0.0.1 is used as the loopback address. This means that it is used by the host computer to send a message back to itself. It is commonly used for troubleshooting and network testing. \n\nClass B - Class B is used for medium-sized networks. A good example is a large college campus. IP addresses with a first octet from 128 to 191 are part of this class. Class B addresses also include the second octet as part of the Net identifier. The other two octets are used to identify each host. This means that there are 16,384 (214) Class B networks each with 65,534 (216 -2) possible hosts for a total of 1,073,741,824 (230) unique IP addresses. Class B networks make up a quarter of the total available IP addresses. Class B networks have a first bit value of 1 and a second bit value of 0 in the first octet. \nNet Host or Node \n145.24. 53.107 \n\n\n\nClass C - Class C addresses are commonly used for small to mid-size businesses. IP addresses with a first octet from 192 to 223 are part of this class. Class C addresses also include the second and third octets as part of the Net identifier. The last octet is used to identify each host. This means that there are 2,097,152 (221) Class C networks each with 254 (28 -2) possible hosts for a total of 536,870,912 (229) unique IP addresses. Class C networks make up an eighth of the total available IP addresses. Class C networks have a first bit value of 1, second bit value of 1 and a third bit value of 0 in the first octet. \nNet Host or Node \n195
53207
If you are talking about IP addresses.  A public IP address is one that is accessible from the internet, and a private IP address is only accessible from your PC's.  Ie.  a frequently use private IP address scheme is 192.168.0.x where the x is a number from 1-254.  These numbers cannot be directly accessed from the internet without going through a router with a public IP number on it.  If you want to provide services to the internet, such as a web site or email server, you really need a public (static) IP number to do this.
963015
C:&#92;>ping yahoo.com  <--what you are pinging\n\nPinging yahoo.com [216.109.112.135] with 32 bytes of data: <--the address was found at 216.109.112.135, now let's start pinging\n\nReply from 216.109.112.135: bytes=32 time=17ms TTL=45  <--The website replied from that IP address.  You sent the site 32bytes of data to test with.  The reply took 17ms (milliseconds) to get back to you.  TTL isn't important here.\nReply from 216.109.112.135: bytes=32 time=18ms TTL=45\nReply from 216.109.112.135: bytes=32 time=19ms TTL=45\nReply from 216.109.112.135: bytes=32 time=18ms TTL=45\n\nPing statistics for 216.109.112.135:\n    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),  <-- you sent 4 packets and all were answered successfully.\nApproximate round trip times in milli-seconds:\n    Minimum = 17ms, Maximum = 19ms, Average = 18ms  <---self explanatory.\n\nIf you want to ping a site "forever", use:  ping whatever.com -t\n\n...where whatever.com is the real site you want to ping.
806098
It means your too far from the router.  You need to move closer to get a better wireless signal.
8331
IP address is assigned to a machine usually upon sign in and will have that address only for the duration of a session or a specific amount of time. \n\nIP addresses contain 32-bits and are expressed as a series of four decimal numbers (also known as a dot address) such as 66.94.230.32 (an IP address for Yahoo!).\n\nYou can choose to block individual IP addresses or block a range of IP addresses depending on which action you wish to take.\n\nYou can use reverse DNS lookup to look up information about a particular IP address including the country of origin and the organization that owns the IP address. Some IP address registries include additional information but this varies by registrar.
916882
just restart the pc and it will all be ok, see we have dynamic IP addresses so the change every so often,maybe the are changing when you  there is no activity on your connection and since your pc is on stand by it doesnt receive the change.
522576
In most cases, the IP address is assigned by the network that the PC is connected to.  It is stored in the PC (if you're running Windows, RUN... the command line program called ipconfig to see what your IP address is).   The reason it doesn't often change is that when and if it is reassigned, the network will often assign the same address as before.\n\n(There is another address, called the MAC address, which is assigned at the factory and is permanently unique.   There's not normally any reason to be concerned with it.  It is used at a low level in the communication protocols.)
440068
well, check your ip by going to Run / CMD / and type "ipconfig /all". note it down, then go to this website http://www.whatismyipaddress.com/ and check the ip it lists. if it's different than your ipconfig ip, then you're being NATed.
207356
A public IP address can be used to address a computer from outside a network; a private IP address is used to address a computer from within a network.\n\nFor example, if you use a router for your home network, it tends to have the address 192.168.0.1 or the like. The first two numbers -- 192.168 -- indicate this is a private address; only computers on the network, behind the router, can reach IP addresses in that group.\n\nA public IP address might be 70.232.43.168; if you type that into your Web browser ( http://70.232.43.168 ), and there is a Web server operating on that IP address listening on a default HTTP port, you'll see the Web site.
858958
Your IP address is the address other computers (in the outside world) use to contact your computer.  It's a lot like a phone number.  If the IP address you're using changes, any computers trying to contact yours may have trouble.  For ordinary home use, this doesn't really matter. \n If you're running a VPN setup, or a server, you may begin to care.
334157
I would said both, the ip address is assigned by dhcp server once connected to isp server, so the reg is changed as url is change, and reg is actually a system file, so both.
61727
I wonder what "IP number" you mean -- the IP address you are using when you connect to the Internet, or the IP address of a point elsewhere, such as a website?\n\nOr maybe you are just trying to connect to your wireless router and set up your own network?\n\n"Linksys routers, for example, use 192.168.1.1 for their internal IP address. D-Link and Netgear routers typically use 192.168.0.1. Some US Robotics routers use 192.168.123.254, and some SMC routers use 192.168.2.1."
1036390
Can you see the "Header Information" in the mail address line? Search your mail settings, I don't know what program you are using to read mail.\n\nThere is a slim chance you can do a trace rout to the sending IP address, if it is there, and narrow down the location, or even the ISP, if you need to report a threat or other potential problem.
295743
If you convert an IP adress (and subnet mask) to binary, it makes more sense.   If a routing table has 2 options to send a request to:\n172.24.32.0/20 and \n172.24.32.0/24\nThe 2nd one is more specific< If you are looking to go an address, the router will pick the one that is the closest match.  Which would be the 2nd choice.