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.
What Does a Layer 3,4 Firewall do that a Layer 7 Does Not?
Jul 29, 2016 · Layer 3 firewalls (i.e. packet filtering firewalls) filter traffic based solely on source/destination IP, port, and protocol. Layer 4 firewalls do the above, plus add the ability to track …
Is it possible to include switches in traceroute hops?
No. The hops shown by traceroute show the path that an IP packet follows on a routed (layer 3) network. Routers will show up, and switches will not. Switches are by their nature a layer 2 device: they …
Upgrading Layer 2 Switched Network to Layer 3 - Server Fault
Sep 8, 2015 · A layer 3 switch will take those packets and route them to the next hop, be it VLAN, or another router. Also, there's not actually anything as a layer 2 or layer 3 switch; there are only layer 2 …
vpn - Should I use tap or tun for openvpn? - Server Fault
Jun 6, 2009 · What are the differences between using dev tap and dev tun for openvpn? I know the different modes cannot inter-operate. What is the technical differences, other then just layer 2 vs 3 …
Why is ICMP categorized as a layer 3 protocol? [closed]
May 30, 2013 · Closed 12 years ago. ICMP is categorized as a layer 3 protocol in the OSI model, but as far as i can tell it does not meet the definition of a network layer protocol. It does not provide …
networking - Layer 2 Network vs Layer 3 Network - Server Fault
Aug 25, 2021 · A layer 2 network only cares about the MAC address presented on each port and is a usually a single broadcast domain. A layer 3 network encompasses the IP configurations as well as …
cisco - How exactly does vlan traffic flow through a layer 3 switch ...
Jul 11, 2019 · 1 Each VLAN is a separate layer-2 network = broadcast domain. Traffic between layer-2 networks = IP subnets needs to be routed. This is what a router or a layer-3 switch does. A client …
switch - Layer 2 vs Layer 3 switches - Server Fault
Dec 31, 2018 · A layer-2 switch forwards frames solely based on layer-2 information, ie. the destination MAC address of each frame. Forwarding happens exclusively between ports belonging the same …
Using a layer 3 switch instead of a router - Server Fault
Dec 9, 2020 · Are there any disadvantages these days to using a layer 3 switch instead of a dedicated router as your gateway? We used to have a traditional setup with a cisco router as our edge device, …