Addressing technologies - Identify, implement and troubleshoot IPv6 addressing and subnetting - ND, RS/RA
6 important questions on Addressing technologies - Identify, implement and troubleshoot IPv6 addressing and subnetting - ND, RS/RA
What is the abbreviation for ND and what does it? 8
Host-Router Discovery:
-Prefix discovery
-Router discovery
-Parameter discovery (link MTU, hop limits)
-SLAAC
Host-host communication:
-Neighbor address resolution (like arp)
-Next-hop determination
-Neighbor unreachability verification
-DAD
Redirect-function
-router informs host of better next-hop
When are NS neighbor solicitation messages used? 3
-Neighbor reachability information
-Layer 3 to layer 2 address resolution (like arp)
What is the abbreviation for DAD and how does it work?
Host sends an NS message to it's own autoconfigured address's corresponding solllicited-node multicast address
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What is the multicast mac destination address for FF02::1:FFEE:FE50?
33:33:FF:EE:FE:50
What is the command to show the IPv6 neighbor cache (like show arp for ipv4)
R2#sh ipv6 neighbors
IPv6 Address Age Link-layer Addr State Interface
2600:123:123:12::1 0 ca01.d05c.0008 REACH Gi0/0
FE80::1 0 ca01.d05c.0008 REACH Gi0/0
What are the different states for the cache entries? 5
reachable
stale (haven't seen some packets for a time but no problem)
delay (indicate problems)
probe (indicate problems)
The question on the page originate from the summary of the following study material:
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