What networking layer do messages received via TCP or socket ...
Apr 10, 2018 · TCP is layer 4, the transport layer. IPv4 or IPv6 work at layer 3, the network layer.
Why is ICMP categorized as a layer 3 protocol? [closed]
May 30, 2013 · ICMP is implemented as a part of the IP layer so ICMP processing can be viewed as occurring parallel to, or as a part of, IP processing. Therefore, in the topic on TCP/IP-based layered …
What's the difference between a Layer 2 & Layer 3 switch
Mar 18, 2010 · 4 Simply put, a layer 3 switch can forward packets between different networks like a router while layer 2 switches forward packets to different segments/or within a given network.
Which layer is responsible for flow control? - Server Fault
Transport layer, more specifically TCP provides flow control by a backtracking algorithm while UDP does not. TCP has various flow and congestion avoiding protocols, such as TCP Vegas. As I get it: when …
Network layer communication with multiple hosts with the same IP but ...
Dec 16, 2021 · Network layer communication with multiple hosts with the same IP but different MAC addresses Ask Question Asked 4 years, 3 months ago Modified 4 years, 3 months ago
networking - DNS and OSI Layer Working - Server Fault
Sep 12, 2020 · 2 Regarding the OSI model, HTTP isn't on top of DNS, but both are independent application layer protocols, having their own OSI model stacks beneath. They can share the same …
Ethernet frames: what are the source and destination MAC addresses?
Why not B? Because switches (bridges) when operating at layer 2 don't modify the source or destination MAC address. A router on the other hand, will modify the source MAC address, substituting the …
What Does a Layer 3,4 Firewall do that a Layer 7 Does Not?
Jul 29, 2016 · Layer 7 firewalls (i.e. application gateways) can do all of the above, plus include the ability to intelligently inspect the contents of those network packets. For instance, a Layer 7 firewall could …
router - How network devices affect TTL - Server Fault
May 5, 2011 · TTL is part of the IPv4 protocol (on v6 it is called "Hop Limit", as per Steven Monday's comment). Switches and hubs operate on a different layer of the ISO/OSI model (layer 2 as opposed …
Why is it a bad idea to use multiple NAT layers or is it?
The only real problem with doing multi-layered NATing is that it makes your network topology confusing. If you use multiple layers of NAT then you throw out the symmetric routing between all hosts in the …