R1 Flashcards
Considering that we have private/public IPs and MAC is the hardware IP, what is the difference between the MAC and private IP?
Can a device have different private IPs on different networks while retaining the same MAC? Can a MAC address be changed?
Yes, no.
On what device is a MAC address assigned to? Give one realistic example of why SOC might use that information.
network interface card (NIC)
My old desktop had a PCI based wireless adapter card, would that wireless card have had an NIC? Or, would it be inside the motherboard? Or both? If both, then is there a MAC address for both too?
The PCI card is a NIC, but the motherboard may have had its own built-in NIC for wired ethernet connections. Wired + wireless NIC.
What does DHCP stand for?
dynamic host configuration protocol
what does NAT stand for?
network address translation
do I really need to know what DHCP and NAT stand for and why?
It’s for helping to understand the concepts. NAT: NA refers to the IP addresses on the network and T refers to the translation aspect. DHCP: The host is the device and the dhcp follows a protocol to configure it and others dynamically. The router knows how to make them do what they do with its firmware.
Difference between ifconfig and ipconfig
ifconfig is for linux and mac and ip is for windows, they are similar otherwise
Which command allows you to access the manual pages for specific commands? Does that apply to all commands?
the ‘man’ command, but it is primarily used for system commands and itilities. You might need to refer to documentation/helptab for software specific commands/tools.
when spoofing a mac address, do I have to use en0 command? Why or why not?
Technically no, but it is good practice. A lot of times there are multiple network interfaces (multiple potential problems in that…), so, this must also apply to a bunch of other commands as well.
