What are the 7 layers?

Layer 7 refers to the top layer in the 7-layer OSI model of the Internet. It is also known as the “application layer.” It’s the top layer of the data processing that occurs just below the surface or behind the scenes of the software applications that users interact with.

What is Layer 7 routing?

A layer 7 load-balancer takes routing decision based on IPs, TCP or UDP ports or any information it can get from the application protocol (mainly HTTP). The layer 7 load-balancer acts as a proxy, which means it maintains two TCP connections: one with the client and one with the server.

What layer is a ping?

Network layer

Is DHCP a Layer 2?

DHCP works on Layer 2 in the OSI model. This means that when a device needs an IP address they can only request one on the same network that it’s present on.

Is DHCP a Layer 7?

DHCP works on Layer 2 in the OSI model. https://www.quora.com/On-which-layer-of-OSI-model-DHCP-works > DHCP is a layer 7 or application layer protocol in the OSI model.

Why does DHCP use two ports?

The DHCP has two port numbers, that is, port 67 for the DHCP server and port 68 for the DHCP client. This means that the DHCP client selects only port 68, rather than a temporary port that is not used. The two ports are selected because a response from the DHCP server can be broadcast.

Is Slaac better than DHCP?

Stateless Address Autoconfiguration (SLAAC) is another way to assign addresses on an IPv6-enabled network. DHCPv6 is not just the familiar DHCP for IPv4 (DHCPv4) transliterated into IPv6 – and you need to understand the differences before planning for and deploying DHCPv6.

Which is better DHCPv6 or Slaac?

If you do not have any requirement to restrict the hosts that can attach to the network using IPv6, then SLAAC, combined with DNS advertisement in the RA, and possibly with DDNS (if needed), would be the right choice. However, if the environment must be more secure, then DHCPv6 is likely to be the better solution.

What is Slaac RA?

SLAAC provides the ability to address a host based on a network prefix that is advertised from a local network router via Router Advertisements (RA). RA messages are sent by default by most IPV6 routers; these messages are sent out periodically by the router and include information including: Flag information.

Is DHCPv6 necessary?

DHCPv6 is not necessary for configuring hosts with the addresses of Domain Name System (DNS) servers, because they can be configured using Neighbor Discovery Protocol, which is also the mechanism for stateless autoconfiguration.

What is Slaac stateless?

(StateLess Address Auto Configuration) The preferred method of assigning IP addresses in an IPv6 network. SLAAC devices send the router a request for the network prefix, and the device uses the prefix and its own MAC address to create an IP address.

What is stateless DHCPv6?

“Stateless DHCP” refers to the use of DHCP to provide configuration information to clients that does not require the server to maintain dynamic state about the DHCP clients.

What is a stateless address?

The stateless mechanism enables a host to generate its own addresses. The stateless mechanism uses local information as well as non-local information that is advertised by routers to generate the addresses. Routers advertise prefixes that identify the subnet or subnets that are associated with a link.

How do I enable Slaac?

Enable IPv6 SLAAC on Cisco Routers

Step-1. Enable IPv6 Routing on R6. R6(config)#ipv6 unicast-routing.
Step-2. Enable IPv6 and Add prefix on R6: interface Ethernet0/1. ip address 192.168.100.10 255.255.255.0.
Step-3. Enable IPv6 Routing on R1. R1(config)#ipv6 unicast-routing.
Step-4. Enable IPv6 and configure IPv6 auto-config R1: interface Ethernet0/0.