Under which two circumstances would a router usually be configured as a DHCPv4 client? It should use the information that is contained in the RA message and contact a DHCPv6 server for additional information. A network administrator configures a router to send RA messages with M flag as 0 and O flag as 1.
Likewise, should I use 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.
Secondly, what are two characteristics of the Slaac method for IPv6 address configuration? This stateful method of acquiring an IPv6 address requires at least one DHCPv6 server. The default gateway of an IPv6 client on a LAN will be the link-local address of the router interface attached to the LAN. Router solicitation messages are sent by the router to offer IPv6 addressing to clients.
Likewise, what is difference between Slaac and DHCPv6?
Deploying and configuring DHCP for IPv6 (DHCPv6) is one way to assign addresses on an IPv6-enabled network. Stateless Address Autoconfiguration (SLAAC) is another way to assign addresses on an IPv6-enabled network.
Which command is not configured in stateless DHCPv6?
The DHCPv6 is for the stateless DHCPv6 operation that is indicated by changing the O flag to 1 and leaving the M flag as default, which is 0. Therefore, it is not configured for stateful DHCPv6 operation.
Related Question Answers
Which two ICMPv6 messages are used in the Slaac process choose two?
The two ICMPv6 messages used in SLAAC are the router solicitation and the router advertisement.Which dhcpv4 message will our clients and to accept an IPv4 address that is offered by a DHCP server?
When a DHCP client receives DHCPOFFER messages, it will send a broadcast DHCPREQUEST message for two purposes. First, it indicates to the offering DHCP server that it would like to accept the offer and bind the IP address. Second, it notifies any other responding DHCP servers that their offers are declined.Which is a method of obtaining an IPv6 address and other configuration values from a DHCPv6 server?
Generally, a DHCPv6 client communicates with a DHCPv6 server through the link-local multicast address to obtain IPv6 addresses, prefixes, and other network configuration parameters. If a DHCPv6 server and a DHCPv6 client are on different links, a DHCPv6 relay agent is required to forward DHCPv6 packets.What are two benefits of NAT choose two?
Some benefits of NAT include: Reuse of private IP addresses. Enhancing security for private networks by keeping internal addressing private from the external network. Connecting a large number of hosts to the global Internet using a smaller number of public (external) IP address, thereby conserving IP address space.What is the main purpose of Nat?
Network Address Translation (NAT) is designed for IP address conservation. It enables private IP networks that use unregistered IP addresses to connect to the Internet.Is DHCPv6 necessary?
It is the IPv6 equivalent of the Dynamic Host Configuration Protocol for IPv4. 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.Why is it beneficial to use DHCPv6?
DHCPv6 offers a number of advantages over SLAAC: It allows central management, so administrators can know which addresses were in use at which time. This may be important for auditing, billing, and other purposes. Administrators may configure DHCPv6 to grant specific parameters to different groups or even single users.How configure DHCP IPv6 on router?
To configure the DHCPv6 server for an interface, from Policy Manager:- Edit a trusted, optional, or custom interface.
- Select the IPv6 tab.
- Select Enable IPv6.
- From the DHCP drop-down list, select Use DHCP Server.
- Click Configure. The DHCPv6 configuration settings appear.
Do you think IPv6 will be exhausted?
Will IPv6 addresses run out eventually? In practical terms, no. There are 2^128 or 340 trillion, trillion, trillion IPv6 addresses, which is more than 100 times the number of atoms on the surface of the Earth. This will be more than sufficient to support trillions of Internet devices for the forseeable future.Can Slaac and DHCPv6 be used together?
SLAAC automatically works with a router, while Stateless DHCPv6 gives addresses using SLAAC and extra information using DHCP. The only configuration where the server gives IPv6 addresses is the Stateful one. You need to tune Neighbor Discovery flag with ipv6 nd other-config-flag and ipv6 nd managed-config-flag commands.What host configuration options can router advertisements contain?
An IPv6 Router Advertisement can contain multiple DNS Recursive Server Address options, each with the same or different lifetimes. A single DNS Recursive DNS Server Address option can contain multiple Recursive DNS Server addresses as long as the addresses have the same lifetime.When would it be appropriate to use a stateless DHCPv6 server?
The stateless approach is used when a site is not concerned with the exact addresses that hosts use. However, the addresses must be unique. The addresses must also be properly routable.What is Slaac IPv6 address?
SLAAC stands for Stateless Address Autoconfiguration and the name pretty much explains what it does. It is a mechanism that enables each host on the network to auto-configure a unique IPv6 address without any device keeping track of which address is assigned to which node.Which network layer protocol is used if a host without an IP address tries to obtain an IP address from DHCP server?
The DHCP employs a connectionless service model, using the User Datagram Protocol (UDP). It is implemented with two UDP port numbers for its operations which are the same as for the bootstrap protocol (BOOTP).What does the nd other flag configure on a router?
Other-Config-Flag tells the end-host to use SLAAC to get IPv6 address and DHCPv6 to get other parameters (DNS server address, for example). Absence of both flags tells the end-host to use only SLAAC.What is Slaac used for?
SLAAC is used to automatically assign an IPv6 address to a host, but there are a number of scenario where hosts may end up using stale configuration information and thereby leading to interoperability problems.How do I enable Slaac?
Enable IPv6 SLAAC on Cisco Routers- Step-1. Enable IPv6 Routing on R6.
- 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.
