def _parse_cisco_mac_address(cisco_hardware_addr):
    """
    Parse a Cisco formatted HW address to normal MAC.

    e.g. convert
    001d.ec02.07ab

    to:
    00:1D:EC:02:07:AB

    Takes in cisco_hwaddr: HWAddr String from Cisco ARP table
    Returns a regular standard MAC address
    """
    cisco_hardware_addr = cisco_hardware_addr.replace(".", "")
    blocks = [
        cisco_hardware_addr[x : x + 2] for x in range(0, len(cisco_hardware_addr), 2)
    ]

    return ":".join(blocks).upper()