There are no special characters, that i can tell, or white spaces when i store the IP in the script. I trim those out. The first foreach works and removes the lines that don't contain scope info. The second foreach partially works, it does strip out the IP. Trim but that wasn't working. I tried a number of things. I tried converting the octets to integers and joining them with ".
Like so:. The ultimate goal is to be able to extract any configured scope options, wherever they may be configured server, reservation My opinion is that the command wants to see an actual IP address but my attempts to pass the variable that way have failed and it works in the powershell console when saved as a string.
Fair disclosure, I'm still very much a novice and I was reluctant to post my code. I see so many on here with incredibly elegant solutions to things and, by comparison, my stuff seems extremely clunky. But I endeavor to learn and I have spent the better part of this weekend googling with no results. The lease associated with an IP address may be terminated at the command prompt using the following command syntax:. For example,. For Linux systems the corresponding command is ifconfig -a.
Once the MAC address has been identified, the reservation may be configured using either the DHCP console or at the command prompt using the netsh tool.
For example the following command reserves an IP address for a specific MAC address note that the MAC address must be entered without any delimiters :. To list the current reserved IP addresses for a particular scope the following netsh command may be used:. The configuration on a remote system may be similarly saved by specifying the name or IP address of the server:. If there is an existing file by the same name, an error is returned. Specifies that, if there is a file that already exists with the specified name, the file is overwritten.
The Microsoft. The path after the pound sign provides the namespace and class name for the underlying WMI object. Skip to main content. This browser is no longer supported. Download Microsoft Edge More info. Contents Exit focus mode. Export-Dhcp Server Reference Is this page helpful? Please rate your experience Yes No. These ranges are represented on a DHCP server with scopes. The administrator first creates a scope for each physical subnet and then uses the scope to define the parameters used by clients.
Before deploying your servers, list your subnets and the IP address range you want to use for each subnet. Each subnet mask is a bit number that uses consecutive bit groups of all ones 1 to identify the network ID and all zeroes 0 to identify the host ID portions of an IP address.
For example, the subnet mask normally used with the IP address This subnet mask number is 16 one-bits followed by 16 zero-bits, indicating that the network ID and host ID sections of this IP address are both 16 bits in length.
Normally, this subnet mask is displayed in dotted decimal notation as Typically, default subnet mask values are acceptable for most networks with no special requirements and where each IP network segment corresponds to a single physical network. In some cases, you can use customized subnet masks to implement IP subnetting. With IP subnetting, you can subdivide the default host ID portion of an IP address to specify subnets, which are subdivisions of the original class-based network ID. By customizing the subnet mask length, you can reduce the number of bits that are used for the actual host ID.
If you then go and manually configure some servers and other devices with static IP addresses from the same IP address range that the DHCP server is using, you can accidentally create an IP address conflict, where you and the DHCP server have both assigned the same IP address to different devices.
To solve this problem, you can create an exclusion range for the DHCP scope. If you create an exclusion range, the DHCP server does not assign the addresses in that range, allowing you to manually assign these addresses without creating an IP address conflict. You should use exclusions for all devices that are configured with a static IP address.
It is recommended that you configure your exclusion range with extra addresses to accommodate future network growth. The following table provides an example exclusion range for a scope with an IP address range of In addition, you might have additional devices, such as printers, that you want to ensure always have the same IP address. List the devices that you want to configure statically for each subnet, and then plan the exclusion range you want to use on the DHCP server to ensure that the DHCP server does not lease the IP address of a statically configured device.
Exclusion ranges assure that any addresses in these ranges are not offered by the server to DHCP clients on your network. For example, if the IP address range for a subnet is
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