What two temporary measures should be implemented to secure a wired network during ongoing changes?

To secure a wired network during ongoing changes, disabling DHCP is a valuable temporary measure. DHCP (Dynamic Host Configuration Protocol) automatically assigns IP addresses to devices on the network, which is convenient but can pose a security risk during periods of change. By disabling DHCP, you prevent unauthorized devices from easily connecting to the network, as they will not receive an IP address and, thus, cannot communicate on the network. This way, the network is more controlled, allowing only pre-approved devices to operate.

Assigning static IP addresses to authorized devices is another effective measure. However, this approach complements the disabling of DHCP rather than replacing it. It ensures that only those devices with specific configurations can connect, further enhancing security during transitional phases. Upgrading network hardware is usually a strategic long-term solution and does not address immediate security concerns through existing configurations. Using MAC address filtering can help to some extent, but it is not foolproof as MAC addresses can be spoofed, making other measures like disabling DHCP more reliable for securing the network temporarily.