How to filter mac adress >>♡♡

MAC address filtering (aka link-layer filtering) is
a feature for IPv4 addresses that allows you to
include or exclude computers and devices based
on their MAC address.
When you configure MAC address filtering, you
can specify the hardware types that are
exempted from filtering. By default, all hardware
types defined in RFC 1700 are exempted from
filtering. To modify hardware type exemptions,
follow these steps:
1. In the DHCP console, right-click the IPv4
node, and then click Properties.
2. On the Filters tab, click Advanced. In the
Advanced Filter Properties dialog box, select the
check box for hardware types to exempt from
filtering. Clear the check box for hardware types
to filter.
3. Click OK to save your changes.
Before you can configure MAC address filtering,
you must do the following:
Enable and define an explicit allow list. The
DHCP server provides DHCP services only to
clients whose MAC addresses are in the allow
list. Any client that previously received IP
addresses is denied address renewal if its MAC
address isn’t on the allow list.
Enable and define an explicit deny list. The
DHCP server denies DHCP services only to
clients whose MAC addresses are in the deny
list. Any client that previously received IP
addresses is denied address renewal if its MAC
address is on the deny list.
Enable and define an allow list and a block list.
The block list has precedence over the allow list.
This means that the DHCP server provides DHCP
services only to clients whose MAC addresses
are in the allow list, provided that no
corresponding matches are in the deny list. If a
MAC address has been denied, the address is
always blocked even if the address is on the
allow list.
To enable an allow list, deny list, or both, follow
these steps:
1. In the DHCP console, right-click the IPv4
node, and then click Properties.
2. On the Filters tab, you’ll see the current filter
configuration details. To use an allow list, select
Enable Allow List. To use a deny list, select
Enable Deny List.
3. Click OK to save your changes.
Note: As an alternative, you can simply right-
click the Allow or Deny node, and then select
Enable to enable allow or deny lists. If you right-
click the Allow or Deny node and then select
Disable, you disable allow or deny lists.
Once you’ve enabled filtering, you define your
filters using the MAC address for the client
computer or device’s network adapter. On a
client computer, you can obtain the MAC address
by typing the command ipconfig /all at the
command prompt. The Physical Address entry
shows the client’s MAC address. You must type
this value exactly for the address filter to work.
When you define a filter, you can specify the
MAC address with or without the hyphens. This
means that you could enter FE-01-56-23-18-94-
EB-F2 or FE0156231894EBF2. You also can use
an asterisk (*) as a wildcard for pattern
matching. To allow any value to match a specific
part of the MAC address, you can insert * where
the values normally would be, such as:
FE-01-56-23-18-94-*-F2
FE-*-56-23-18-94-*-*
FE-01-56-23-18-*-*-*
FE01*
To configure a MAC address filter, follow these
steps:
1. In the DHCP console, double-click the IPv4
node, and then double-click the Filters node.
2. Right-click Allow or Deny as appropriate for
the type of filter you are creating, and then click
New Filter.
3. Enter the MAC address to filter, and then
enter a comment in the Description field if you
want to. Click Add. Repeat this step to add other
filters.
4. Click Close when you have finished.