

Sample output – help menu > IPMICFG.exe –sdr If VLANtag is not given it uses previously saved value. vlan on Enable the VLAN and set the VLAN tag. Option: -d | Detected IPMI device for BMC reset. k Mask Set Subnet Mask (format: #.#.#.#). Usage: IPMICFG params (Example: IPMICFG -m 192.168.1.123) Ex: Red Hat Enterprise Linux (RHEL) 6.8 and 7.2 SUSE Linux Enterprise Server (SLES) 11 SP4 and 12 SP1 Ubuntu Server 14.04 LTS and 16.04 LTS

If the DHCP clients are VMs of a Hyper-V Server, you may prefer to set static MAC address instead of dynamic MAC addresses that are assigned by default. You can do the same for clients already in Address Leases, of course not having to type the MAC address.įinally, do not forget to enable or disable the Allow and Deny lists by right-clicking and then choosing the corresponding option. So, if a client does not receive an IP address from a DHCP Server and the Filters are enabled, then your first action will be to check if it is in the Deny and then in Allow lists.Īdditionally, you can move one or more clients from one list to another by right-clicking and then choose the corresponding option. What is important to know is that the Deny list is superior to any other setting. Respectively, follow the same procedure to add clients to the Deny list. You can also use the asterisk (*) as a wildcard to declare a range of MAC addresses. The MAC address you type can be dashed (eg AA-BB-CC-DD-EE-FF) or without (eg AABBCCDDEEFF). Next, type the client’s MAC address and a description (optional) and click the Add button to complete the process. To add a DHCP Client to the Allow list, right-click and then click New Filter. By default, the two lists are deactivated and you can see this from the red down arrow, as shown in the figure below. Here, you’ll see two sub-folders (lists), Allow and Deny. In the DHCP console, expand the server and IPv4 objects and go to the Filters object.
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Now, let’s see how to configure DHCP filters.

This means that if a client is on the Deny list, it will be prevented in any case even if it is in the Allow list.

Setting up DHCP Filters is quite simple and works at the server level, not at Scope level. After installing the DHCP role in Windows Server 2016 and setting up the first IPv4 Scopes to serve IP addresses to clients, it’s time to see how DHCP Filters work.ĭHCP Filters are primarily used to further shield an infrastructure by allowing or denying specific clients based on their MAC addresses.
