Just go to command prompt. Type in "ipconfig"
Local system IP address,Subnet mask and Default Gateway of a computer
The subnet address for this ISP could be almost anything, depending on how the ISP breaks up a larger network pool into a smaller one. The default subnet would be 255.0.0.0, but that is not very likely with an ISP. You can check by using the 'ipconfig' command in Windows to see the subnet mask, or 'ifconfig' if using Linux.
it depends on your operating system. On windows the command is: ipconfig /all
After running cmd, you can check the MAC (Physical Address) address by using the command ipconfig /all.
If you are using windows open a "terminal" window and type in the command "ipconfig all"
On Windows systems:Click Start > Run. Then type: cmdThe 'DOS' box will open, type: ipconfig /all(Note: there is a SPACE after the word ipconfig) The information displayed will be similar to the below if you have a single address;C:\Documents and Settings\xxxx>ipconfig /allWindows IP ConfigurationHost Name . . . . . . . . . . . . : machinePrimary Dns Suffix . . . . . . . :Node Type . . . . . . . . . . . . : UnknownIP Routing Enabled. . . . . . . . : NoWINS Proxy Enabled. . . . . . . . : NoDNS Suffix Search List. . . . . . : hsd1.ma.comcast.net.Ethernet adapter Local Area Connection:Connection-specific DNS Suffix . : hsd1.ma.comcast.net.Description . . . . . . . . . . . : 3Com EtherLink XL 10/100 PCI TX NIC (3C905B-TX)Physical Address . . . . . . : 00-10-5A-13-53-F7Dhcp Enabled. . . . . . . . . :YesAutoconfiguration Enabled. . . :YesIP Address. . . . . . . . . . . . : 65.12.23.123Subnet Mask. . . . . . . . . . . : 255.255.248.0Default Gateway. . . . . . . . : 66.31.48.1DHCP Server. . . . . . . . . . : 68.87.71.8DNS Servers . . . . . . . . . . . : 68.87.71.22668.87.73.24268.87.64.146Lease Obtained: Friday, April 17, 2009 12:34:21 PMLease Expires: Tuesday, April 21, 2009 12:34:21 PMNote: Type the word: exit > then hit the Enterkey to close the DOS session.On Mac or Linux/Unix systems:Launch the Terminal located in /Applications/Utilities/Type the following command:ifconfigYou will see most of the same info as the Windows example above. Your IP, subnet mask and gateway will all be clearly marked.
Using The ipconfig Command in Command Prompt.SyntaxC:\Users\\ipconfigMain syntax - ipconfigThe proper syntax is IPCONFIG /allThe slash-all shows everything.Do a IPCONFIG /? for all the commands used.ipconfig
You haven't indicated what operating system you are using. For windows, using the 'ipconfig /all' command will show you what the DHCP server address is.
The syntax is built in already in DOS.To see a syntax of your command, just add /helpex: ipconfig /help and hit enterFirst, you must run an ipconfig command from the command prompt. This is done by going to Start -> Run and typing cmd, then clicking OK. Then in the black command prompt window you will type ipconfig with one of several options. If you just type ipconfig and hit enter then it will show you the basic information of your network adapters. This information will include your IP Address, Subnet Mask, and Default Gateway. For most people, this information will be enough. If you want all of the information regarding your network adapters type ipconfig /all. This will also give you your MAC Address, DNS servers, and whether your adapter receives it's address via DHCP.There are also other options you can use to try and repair a connection. The first is ipconfig /renew. If you type it just as is, it will try to get a new IP address for all network adapters that are using DHCP. Alternately, you can type ipconfig /renew ADAPTERNAME and it will just renew the IP address on the selected adapter. The next option is ipconfig /release CONNECTIONNAME. This will release the IP address that the selected connection is using. This will only work if that adapter is using DHCP and will leave the adapter without an address.The command can also be used to try and repair and DNS issues. You can use ipconfig /flushdns to purge all of your cached up DNS records. This can help if a site has had it's IP address changed in the recent past. Eventually this record will be updated, but this command can force an immediate update for all records. If you just want to see what DNS records have been registerd use the ipconfig /displaydns command.There are also some functions that can be used for displaying or modifying the class id's, but I have never seen a need to use these.First, you must run an ipconfig command from the command prompt. This is done by going to Start -> Run and typing cmd, then clicking OK. Then in the black command prompt window you will type ipconfig with one of several options. If you just type ipconfig and hit enter then it will show you the basic information of your network adapters. This information will include your IP Address, Subnet Mask, and Default Gateway. For most people, this information will be enough. If you want all of the information regarding your network adapters type ipconfig /all. This will also give you your MAC Address, DNS servers, and whether your adapter receives it's address via DHCP.There are also other options you can use to try and repair a connection. The first is ipconfig /renew. If you type it just as is, it will try to get a new IP address for all network adapters that are using DHCP. Alternately, you can type ipconfig /renew ADAPTERNAME and it will just renew the IP address on the selected adapter. The next option is ipconfig /release CONNECTIONNAME. This will release the IP address that the selected connection is using. This will only work if that adapter is using DHCP and will leave the adapter without an address.The command can also be used to try and repair and DNS issues. You can use ipconfig /flushdns to purge all of your cached up DNS records. This can help if a site has had it's IP address changed in the recent past. Eventually this record will be updated, but this command can force an immediate update for all records. If you just want to see what DNS records have been registerd use the ipconfig /displaydns command.There are also some functions that can be used for displaying or modifying the class id's, but I have never seen a need to use these.
255.255.240.0 126.0.160.0
From a command prompt type: ipconfig /all It will list the adapter's Ethernet address as "Physical Address". It will be 6 pairs of hex values with dashes in between.
Bring up a command prompt window and type 'ipconfig /all' (without the quotes)