WEBVTT

00:00:00.040 --> 00:00:05.160
whenever you click on an enticing Link in a web browser the website you're

00:00:03.280 --> 00:00:10.360
looking at knows to send whatever the link contains to your computer and not

00:00:08.200 --> 00:00:15.719
your neighbors because your computer sends its IP address kind of like a

00:00:13.080 --> 00:00:20.359
return address on an envelope but as it turns out IP addresses only get you as

00:00:18.080 --> 00:00:24.960
far as the modem you have in your house and these days most of us have tons of

00:00:23.240 --> 00:00:31.480
things connected to our routers especially wirelessly phones laptops

00:00:27.640 --> 00:00:35.960
tablets computers other people's phones

00:00:31.480 --> 00:00:39.079
consoles CH casts oh and they're all

00:00:35.960 --> 00:00:40.360
connected nearly all the freaking time

00:00:39.079 --> 00:00:47.920
you don't really want to be thinking about it so how does your home networking equipment know to send those

00:00:44.920 --> 00:00:50.719
questionable videos to you and not your

00:00:47.920 --> 00:00:55.039
parents sitting in the Next Room well each device on your network has

00:00:52.359 --> 00:01:00.640
something called a Mac Address yes even the PCS Mac in this case stands for

00:00:57.480 --> 00:01:03.680
media access control it identifies which

00:01:00.640 --> 00:01:05.600
device is which on your local network so

00:01:03.680 --> 00:01:10.560
here's how they work when data arrives at your home from the worldwide internet

00:01:08.520 --> 00:01:15.400
your router needs to decide which device to send that data to it does this by

00:01:12.960 --> 00:01:20.000
keeping track of the Mac addresses of all the devices connected to it then

00:01:17.520 --> 00:01:25.920
assigning what's called a private IP address usually starting with 1

00:01:22.240 --> 00:01:27.880
192.168 to every device this is also why

00:01:25.920 --> 00:01:32.079
you usually punch in those numbers to access your router's control panel

00:01:29.600 --> 00:01:37.040
through your browser this is very different from a public IP which is what

00:01:34.799 --> 00:01:42.520
the rest of the internet sees as being your IP address for your entire home

00:01:40.000 --> 00:01:46.960
network and what comes up when you type what's my IP address into Google your

00:01:44.960 --> 00:01:51.600
router keeps track of outbound requests such as when you click on a link so when

00:01:49.040 --> 00:01:56.159
the data you want arrives at your router it attaches the correct private IP

00:01:53.680 --> 00:02:00.799
address to the data packets ensuring that they got to your computer or device

00:01:58.320 --> 00:02:05.399
since all those private IP correspond to the correct Mac Address now this might

00:02:03.520 --> 00:02:09.599
understandably seem a little redundant since your computer now has both a

00:02:07.159 --> 00:02:14.319
private IP and a Mac Address that can both individually identify it but in

00:02:11.760 --> 00:02:19.239
reality you need both since although both the public and private IPS stay the

00:02:16.879 --> 00:02:23.720
same throughout this process the Mac addresses on the data packets are

00:02:21.239 --> 00:02:28.120
constantly being changed they only tell the data where to go for its next hop

00:02:26.319 --> 00:02:33.080
when your data gets to the next device the Mac Address has changed in order to

00:02:30.400 --> 00:02:36.760
tell it where to go well next since your data might go through numerous servers

00:02:34.879 --> 00:02:41.800
and routers before it finally gets to your device Mac Address information is

00:02:39.360 --> 00:02:46.720
crucial even though you have a private IP another upside of Mac addresses is

00:02:44.400 --> 00:02:51.239
that normally they always stay the same with many devices having their Mac

00:02:48.400 --> 00:02:55.760
addresses hardcoded into the firmware at the factory making it easy to spot a

00:02:53.360 --> 00:02:59.959
malfunctioning device on the network if you're trying to troubleshoot and if you

00:02:57.800 --> 00:03:05.360
want to protect your network by making it so that only devices that you approve

00:03:02.760 --> 00:03:10.080
can connect many routers use Mac addresses to restrict access to known

00:03:07.560 --> 00:03:14.840
devices very useful if you're worried someone might try to steal your Wi-Fi

00:03:11.720 --> 00:03:16.879
password or even plug in physically isps

00:03:14.840 --> 00:03:20.360
also use predefined Mac addresses to make it easy to provide you with the

00:03:18.640 --> 00:03:23.519
service you paid for so that your neighbor isn't the one getting that

00:03:22.080 --> 00:03:28.239
expensive gigabit connection that you're shelling out money for every month of

00:03:25.680 --> 00:03:33.159
course they also use these to block access if you aren't paying your bills

00:03:30.319 --> 00:03:37.760
however so type that as you will it is possible to spoof a Mac Address however

00:03:36.200 --> 00:03:41.799
and you might want to if you're concerned about your privacy on a public

00:03:39.640 --> 00:03:46.159
Wi-Fi connection or you connect a new device to your network that your ISP

00:03:43.720 --> 00:03:51.439
might not recognize but be for warned that this might not make your ISP happy

00:03:48.840 --> 00:03:55.519
depending on who they are actually who am I kidding it probably doesn't depend

00:03:53.040 --> 00:03:59.959
at all does it racing against the clock as a freelancer challenging whatever

00:03:57.599 --> 00:04:02.879
you're doing yes I'm sure but with the growth of the internet there's never

00:04:01.439 --> 00:04:07.200
been more opportunities for the self-employed to meet this need

00:04:05.159 --> 00:04:11.200
freshbooks is excited to announce the new version of their allnew Cloud

00:04:09.040 --> 00:04:15.640
accounting software do you want to solve all the world's problems make your

00:04:13.040 --> 00:04:19.600
entire life better and be better in bed get fresh books the fresh books you guys

00:04:17.479 --> 00:04:22.919
know and love if you're running your own business and need to make transactions

00:04:21.519 --> 00:04:27.320
and invoices and all that kind of stuff on your own has been redesigned for the

00:04:25.320 --> 00:04:31.880
way that you work with this new Cloud accounting software it's now simpler and

00:04:30.160 --> 00:04:36.080
easier than it was before and it was already simple and easy to get the most

00:04:33.840 --> 00:04:40.639
important things done quickly you can still create and send professional

00:04:37.560 --> 00:04:42.680
looking invoices in less than 30 seconds

00:04:40.639 --> 00:04:47.720
and you can set up online payments with just a couple of clicks to get paid they

00:04:45.080 --> 00:04:52.039
say up to 4 days faster you can see when your client has seen your invoice and

00:04:49.720 --> 00:04:56.639
put the end to the guessing games freshbooks is offering a 30-day

00:04:54.000 --> 00:05:01.199
unrestricted free trial to our viewers to claim it just go to freshbooks.com

00:04:58.639 --> 00:05:04.000
tequi and enter Techquickie in the how did you hear about a section all right

00:05:02.840 --> 00:05:07.199
guys thanks for watching like it if you liked it dislike it if you disliked it get subscribed let us know in the

00:05:06.240 --> 00:05:11.600
comments down below if there's other things you would like us to check out on techwiki check out Channel Super Fun I

00:05:09.680 --> 00:05:16.759
haven't been on there in forever but there is a new like battle couch video

00:05:13.840 --> 00:05:20.000
coming at some point that I will be in so that's pretty cool and I'll see you

00:05:18.759 --> 00:05:26.400
next time I'm going to go play with PlayStation VR for an LTT video which

00:05:22.199 --> 00:05:26.400
you'll also see in the future