Isn't that an old video reposted? I think I saw this one already a while ago! I think you are explaining really well. Your videos are among my favorites. Post new ones please! :-)
You are right and thanks for watching even the old one. It was 40 minutes long and at the time I did not have time to edit as much. New ones will come! Thanks for watching!
Here is a good question, I connect a network cable modem (bridged) output into a network switch and then connected two routers to the switch. I could only get one router to work, the other one gave me IP number conflict issues . Why? You stated in this video it's based on the MAC address, not the (NAT) IP number.
Each router has to be setup with a different IP subnet, so router 1 needs to use 192.168.1.X the other router needs to use a different subnet like 192.168.0.X. That puts all your devices on different subnets and the IP conflicts go away. You are correct the LAN does use the IP except to go to the internet but computers will detect IP conflicts on the LAN.
@@TechsavvyProductions Spectrum told me that the 4 ethernet ports in the back of the modem are not a switch when in "bridge configuration" That means the ISP IP number is present on the one port, and is not as you stated a subnet giving out NAT addresses So in my router configuration each sees the same IP number (conflict) but can't on each switch output port give out a individual NAT address like a router would which would be the 2nd conflict because it's relies on MAC addresses only Am I correct here?
Thank you for all of your great lectures. I always thought that tcp/ip stack was part of the OS and what you call user space was the application layer, where my programs are functioning. So I wonder what is the difference between application layer and user space and where tcp/ip stack is actually operating in hardware, if it resides under the OS.
Technically the TCP/IP stack is really part of the Windows kernel. The stack does sit under User Mode where all services and applications are. Thanks for the comment and watching!
If you are paying attention to data centers they are now building servers with ASIC chips for extreme performance. docs.microsoft.com/en-us/azure/machine-learning/service/how-to-deploy-fpga-web-service
why is he drawing the OS etc at level 8 and above? the OS and network stack would start at level 1/2 respectively, this would be the driver that controls the input/output device like a network card. I don't think this guy understands networking, I mean he labels both sides "Hosts" but I don't think he understands that all 7 layers ARE the host machine, complete with OS network driver, networking protocol, application, and user space. when you type in a web address in a browser that is in layer 7 of the OSI model. I get this is what happens when you rote learn and don't understand.
John thanks for the comments and concerns. In this video I am trying to help students understand the difference from the network stack and user applications. Take a look at my video series on the OSI layer 1 -7 and using Windows I show the where each OSI layer is in the architecture of Windows kernel mode and user mode. In the OSI 1-7 layer video series I show how operating systems incorporate the various software components to provide the network stack. Thanks again for the comments and for watching!
Thank you! It was very informative! You are an excellent teacher!
If it helps people understand the goal was achieved! Thanks for watching.
Your right about about IPS, Synology updates my router on a daily basis !
Wow, that is better than most vendors! Thanks for the comment.
LV is the man !
Thanks for watching
Isn't that an old video reposted? I think I saw this one already a while ago! I think you are explaining really well. Your videos are among my favorites. Post new ones please! :-)
You are right and thanks for watching even the old one. It was 40 minutes long and at the time I did not have time to edit as much. New ones will come! Thanks for watching!
Thanks for the video!
You bet!
Here is a good question, I connect a network cable modem (bridged) output into a network switch and then connected two routers to the switch. I could only get one router to work, the other one gave me IP number conflict issues . Why? You stated in this video it's based on the MAC address, not the (NAT) IP number.
Each router has to be setup with a different IP subnet, so router 1 needs to use 192.168.1.X the other router needs to use a different subnet like 192.168.0.X. That puts all your devices on different subnets and the IP conflicts go away. You are correct the LAN does use the IP except to go to the internet but computers will detect IP conflicts on the LAN.
@@TechsavvyProductions Spectrum told me that the 4 ethernet ports in the back of the modem are not a switch when in "bridge configuration" That means the ISP IP number is present on the one port, and is not as you stated a subnet giving out NAT addresses So in my router configuration each sees the same IP number (conflict) but can't on each switch output port give out a individual NAT address like a router would which would be the 2nd conflict because it's relies on MAC addresses only Am I correct here?
Thank you for all of your great lectures. I always thought that tcp/ip stack was part of the OS and what you call user space was the application layer, where my programs are functioning. So I wonder what is the difference between application layer and user space and where tcp/ip stack is actually operating in hardware, if it resides under the OS.
Technically the TCP/IP stack is really part of the Windows kernel. The stack does sit under User Mode where all services and applications are. Thanks for the comment and watching!
Those ASIC silicon chips are in everything now and days, a good example is big screen LED TV's
If you are paying attention to data centers they are now building servers with ASIC chips for extreme performance. docs.microsoft.com/en-us/azure/machine-learning/service/how-to-deploy-fpga-web-service
why is he drawing the OS etc at level 8 and above? the OS and network stack would start at level 1/2 respectively, this would be the driver that controls the input/output device like a network card.
I don't think this guy understands networking, I mean he labels both sides "Hosts" but I don't think he understands that all 7 layers ARE the host machine, complete with OS network driver, networking protocol, application, and user space. when you type in a web address in a browser that is in layer 7 of the OSI model. I get this is what happens when you rote learn and don't understand.
John thanks for the comments and concerns. In this video I am trying to help students understand the difference from the network stack and user applications. Take a look at my video series on the OSI layer 1 -7 and using Windows I show the where each OSI layer is in the architecture of Windows kernel mode and user mode. In the OSI 1-7 layer video series I show how operating systems incorporate the various software components to provide the network stack. Thanks again for the comments and for watching!