Exam CISSP topic 1 question 469 discussion

Should be OSPFv3. Dynamic routing protocols supporting IPV6 are: RIPng (RIP Next Generation) OSPFv3 <-- EIGRP for IPv6 Integrated IS-IS for IPv6 MP-BGP4

OSPFv3

Confirm A is correct. no dobuts.

From gpt: EIGRP supports both IPv4 and IPv6 address families, allowing it to route traffic for both types of IP addresses. OSPFv3 is designed specifically for IPv6 and supports routing of IPv6 traffic. It is an extension of OSPFv2, which is used for IPv4 routing. if form a new network. you can use both. but for an existing dispersed campus, you cant make sure all device can support ipv6 . you may need to use v4 and v6 together. so chose EIGPR.

Answer: A. Open Shortest Path First (OPSF) version 3 OSPFv3 performs better than EIGRPv6 in terms of most of the parameters i.e. convergence time, RTT, response time, tunnel overhead, protocol traffic statistics, CPU and memory utilization. https://www.researchgate.net/publication/316613297_Optimized_Routing_Information_Exchange_ in_Hybrid_IPv4-IPv6_Network_using_OSPFV3_EIGRPv6

A. Open Shortest Path First (OSPF) version 3 Open Shortest Path First (OSPF) version 3 is typically the best-suited dynamic routing protocol for a dispersed campus network utilizing Internet Protocol version 6 (IPv6) addresses. OSPF is a link-state routing protocol that is widely used in enterprise networks, including campus environments.

A. OSPFv3 would be the best dynamic routing protocol for this scenario. The key points: • OSPFv3 supports IPv6 addressing natively, unlike older protocols designed for IPv4. • It's optimized for large dispersed campus networks with features like: • Hierarchical network topology support • Scalability to hundreds/thousands of routes • Fast convergence and loop prevention • OSPFv3 is widely supported on major router platforms. Other protocol considerations: • RIPng is outdated and has limitations like small hop count limit. • EIGRP for IPv6 is proprietary to Cisco and has limited adoption. • BGP is more suited for ISP/provider networks than enterprise campuses.

EIGRP and OSPF v3 both support ipv6. They both work but "Odds are that unless a network is very small, old or primarily Cisco, the dynamic routing protocol in use on the LAN will be OSPF." https://www.networkcomputing.com/data-centers/comparing-dynamic-routing-protocols