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No, MAC Addresses are fixed per network interface card or NIC. The MAC address is the Media Access Control address and is the hardware address of the network device to which your IP address, e.g. 192.168.1.3 is assigned.
You can identify the vendor of your network card from its MAC address, e.g. all Intel NIC cards may begin with 00-15.
What else can I help you with?
How do bridges and switches dynamically create their table?
Bridges and switches learn and filter MAC addressses into memory over time thereby creating a table of Mac addresses. Bridges build a memory table of MAC addresses they get from segments. Switches build tables based on switch port numbers to MAC addresses instead of segment numbers.
Are there any advantages and disadvantages using the assignment of ip addresses automatically?
Advantages: A company can purchase fewer IP addresses since each machine will not be statically assigned a fixed address but dynamically assigned an address when it accesses the Internet. Disadvantages: The software is more elaborate; what if 100 IP addresses are purchased and the 101st user tries to access the Internet?
What happens to the MAC address when you move a computer to another network?
The MAC address is a unique identifier for a networking card. Each networking card has a MAC address assigned to it during it's manufacturing, and thus it does not change when a computer moves between networks (unlike an IP address which is assigned by the network). A few things to note: - A computer only has a MAC address if it has a physical or virtual network card - A computer has as many MAC addresses as it has networking cards - MAC addresses CAN be modified before being broadcast to the rest of the network, however generally this results in the computer not receiving intended traffic and requires specialized software
How are URLs assigned to IP addresses?
URLs are assigned randomly to differently IP addresses. IP addresses are the numbers that identify a person's location online; it gives the general location and device.
How long are Ethernet Mac addresses?
Ethernet addresses are 48 bits long - not 32 bits long like IP addresses. Different single network standards have different address lengths. Ethernet addresses are called MAC addresses for other reasons, Media Access Control.
How did you determine the IP address for your printer?
IP addresses are normally assigned dynamically by the router.
What types of problems could result from having a mixture of statically assigned and dynamically assigned addresses on same network?
The only problem you might run into, is statically assigning an ip address that is in the dhcp address pool. Make sure you know what the dhcp pool is, and assign static addresses outside of that range.
How does a switch interface that uses sticky port security handle MAC addresses?
They are configured dynamically and are saved in the running configuration.
What two methods can be used to remove MAC address table entries from a switch?
Power cycle the switch to clear all dynamically learned addresses, and the clear mac address table command will remove statically and dynamically configured table entires
How do bridges and switches dynamically create their table?
Bridges and switches learn and filter MAC addressses into memory over time thereby creating a table of Mac addresses. Bridges build a memory table of MAC addresses they get from segments. Switches build tables based on switch port numbers to MAC addresses instead of segment numbers.
What is composed of the remaining addresses within a dhcp scope once all exclusion ranges have been applied?
The remaining addresses form the Available Address Pool which can then be dynamically assigned to DHCP clients
Does the BOOTP require that IP addresses be assigned manually at each client?
No it does not.It relies on a static table to associate IP addresses with the MAC.
What is a possible impact of setting too short an aging time in the MAC address table of a switc?
impaired ability to dynamically learn new addresses
How many potential MAC address schemes are possible?
The original IEEE 802 MAC address comes from the original Xerox Ethernet addressing scheme. This 48-bit address space contains potentially 248 or 281,474,976,710,656 possible MAC addresses.
Are there any advantages and disadvantages using the assignment of ip addresses automatically?
Advantages: A company can purchase fewer IP addresses since each machine will not be statically assigned a fixed address but dynamically assigned an address when it accesses the Internet. Disadvantages: The software is more elaborate; what if 100 IP addresses are purchased and the 101st user tries to access the Internet?
What statement is true about MAC addresses?
MAC addresses are unique identifiers assigned to network interfaces for communications on a local network. They are typically expressed in hexadecimal format and consist of six pairs of digits, separated by colons or hyphens. MAC addresses operate at Layer 2 of the OSI model and are used to facilitate data transfer between devices in a local area network (LAN). Unlike IP addresses, MAC addresses do not change and are tied to the hardware of the device.
Is a MAC address logical?
A MAC address is not considered logical; it is a physical address. It is a unique identifier assigned to network interfaces for communications on a local network segment and is hardcoded into the network hardware. Unlike logical addresses, such as IP addresses, which can change based on the network configuration, MAC addresses remain constant for a device's network interface.
