CCIE R&S 400-101 V5.1 Written Exam: Identify, Implement and Troubleshoot IPv6 Addressing and SubnettingPaul Adam
In this article, I will be discussing Cisco Identify, Implement and Troubleshoot IPv6 Addressing and Subnetting as part of Layer 3 Technologies and Addressing Technologies CCIE Routing and Switching (R&S) V5.1 exam blueprint topics.
- Identify, Implement and Troubleshoot IPv6 Addressing and Subnetting
- Unicast, multicast
- ND, RS/RA
- Autoconfig/SLAAC, temporary addresses [RFC4941]
- Global prefix configuration feature
- DHCP protocol operations
- SLAAC/DHCPv6 interaction
- Stateful, stateless DHCPv6
- DHCPv6 prefix delegation
Let me summarize some of the key takeaways related to Identify, Implement and Troubleshoot IPv6 Addressing and Subnetting as relevant to CCIE Routing and Switching (R&S) V5.1 written exam blueprint topics.
Identify, Implement and Troubleshoot IPv6 Addressing and Subnetting Exam Essentials
- High CPU utilization in the Address Resolution Protocol (ARP) Input process occurs if the router has to originate an excessive number of ARP requests.
- When you have a static route with an exit interface, router generates an ARP request for each IP address that is not reachable through more specific routes, which practically means that the router generates an ARP request for almost every address on the Internet.
- Extended Unique Identifier (EUI), as per RFC 2373, allows a host to assign itself a unique 64-Bit IP Version 6 interface identifier (EUI-64).
- The IPv6 neighbor discovery process uses Internet Control Message Protocol (ICMP) messages and solicited-node multicast addresses to determine the link-layer address of a neighbor on the same network (local link), verify the reachability of a neighbor, and track
- Cisco IOS routers support both stateful DHCP and stateless DHCP. Stateless DHCP does not track IPv6 address bindings per client. It, rather, uses DHCP to hand out domain-names, DNS servers, and other relevant client information.
- Stateless Address Autoconfiguration (SLAAC) is one of the most convenient methods to assign Internet addresses to IPv6 nodes.
- DHCPv6 Prefix Delegation (DHCPv6-PD) is an extension to DHCPv6.
- DHCPv6 prefix delegation feature can be used to manage link, subnet, and site addressing changes.
- Extensions to DHCPv6 also enable prefix delegation, through which an ISP can automate the process of assigning prefixes to a customer for use within the customer’s network
I sincerely hope that you found this article and video helpful. Please post your questions or suggestions in the comments and tell me how you are preparing for your CCIE Routing and Switching (R&S) V5.1 written and lab exams.