Chapter 8 and Chapter 9 SLAAC/
stateless DHCPv6
-clients send only DHCPv6 INFORMATION-REQUEST messages to the server -enabled in RA messages with ipv6 nd other-config-flag command -enabled on the client with the ipv6 address autoconfig command
-The new forwarding router assumes both the IP and MAC addresses of the virtual router. -The standby router assumes the role of the forwarding router. -The forwarding router fails. -The standby router stops seeing hello messages from the forwarding router.
-step 4 -step 3 -step 1 -step 2
stateful DHCPv6
-the M flag is set to 1 in RA messages -uses the address commands to create a pool of addresses for clients -enabled on the client with the ipv6 address dhcp command
Refer to the exhibit. What should be done to allow PC-A to receive an IPv6 address from the DHCPv6 server?
Add the ipv6 dhcp relay command to interface Fa0/0.
What protocol can be configured on gateway routers R1 and R2 that will allow traffic from the internal LAN to be load balanced across the two gateways to the Internet?
GLBP
A network administrator is analyzing the features that are supported by different first-hop router redundancy protocols. Which statement describes a feature that is associated with HSRP?
HSRP uses active and standby routers
Which statement describes HSRP?
It is used within a group of routers for selecting an active device and a standby device to provide gateway services to a LAN.
A network administrator configures a router to send RA messages with M flag as 0 and O flag as 1. Which statement describes the effect of this configuration when a PC tries to configure its IPv6 address?
It should use the information that is contained in the RA message and contact a DHCPv6 server for additional information.
Which destination MAC address is used when frames are sent from the workstation to the default gateway?
MAC address of the virtual router
A company uses the method SLAAC to configure IPv6 addresses for the workstations of the employees. A network administrator configured the IPv6 address on the LAN interface of the router. The interface status is UP. However, the workstations on the LAN segment did not obtain the correct prefix and prefix length. What else should be configured on the router that is attached to the LAN segment for the workstations to obtain the information?
R1(config)# ipv6 unicast-routing
DHCPV6 REQUEST DHCPV6 SOLICIT DHCPV6 REPLY DHCPV6 ADVERTISE
STEP 3 STEP 1 STEP 4 STEP 2
After a host has generated an IPv6 address by using the DHCPv6 or SLAAC process, how does the host verify that the address is unique and therefore usable?
The host sends an ICMPv6 neighbor solicitation message to the DHCP or SLAAC-learned address and if no neighbor advertisement is returned, the address is considered unique.
Refer to the exhibit. PC-A is unable to receive an IPv6 address from the stateful DHCPv6 server. What is the problem?
The ipv6 dhcp relay command should be applied to interface Gig0/0.
Refer to the exhibit. A network administrator is configuring a router for DHCPv6 operation. Which conclusion can be drawn based on the commands?
The router is configured for stateless DHCPv6 operation.
GLBP
a Cisco proprietary FHRP that provides load sharing in addition to redundancy
HSRP
a Cisco proprietary FHRP that provides redundancy through use of an active device and standby device
VRRP
an open standard FHRP that provides redundancy through use of a virtual routers master and one or more backups
Refer to the exhibit. A network administrator is configuring a router as a DHCPv6 server. The administrator issues a show ipv6 dhcp pool command to verify the configuration. Which statement explains the reason that the number of active clients is 0?
The state is not maintained by the DHCPv6 server under stateless DHCPv6 operation.
A company uses the SLAAC method to configure IPv6 addresses for the employee workstations. Which address will a client use as its default gateway?
the link-local address of the router interface that is attached to the network