You are adding IPv6 to an existing IPv4 network running OSPF. Your plan is to use OSPFv3 to route both IPv4 and IPv6 prefixes. Which configuration will enable OSPFv3 to advertise prefixes for both…

The correct answer is A. user@host# show protocols ospf3. By default, OSPFv3 supports unicast IPv6 routes, but you can configure OSPFv3 to support multiple address families. To support an address family other than unicast IPv6, you configure a realm that allows OSPFv3 to advertise IPv4 unicast, IPv4 multicast, or IPv6 multicast…

IC Series Deployment and Configuration

Question

You are adding IPv6 to an existing IPv4 network running OSPF. Your plan is to use OSPFv3 to route both IPv4 and IPv6 prefixes. Which configuration will enable OSPFv3 to advertise prefixes for both IPv4 and IPv6?

Options

Auser@host# show protocols ospf3
Buser@host# show protocols ospf3
Cuser@host# show protocols ospf
Duser@host# show protocols ospf3

How the community answered

(17 responses)

A
76% (13)
B
6% (1)
C
6% (1)
D
12% (2)

Explanation

By default, OSPFv3 supports unicast IPv6 routes, but you can configure OSPFv3 to support multiple address families. To support an address family other than unicast IPv6, you configure a realm that allows OSPFv3 to advertise IPv4 unicast, IPv4 multicast, or IPv6 multicast routes. Example of a configuration which support both Ipv4 and Ipv6 prefixes: user@host# show protocols ospf3 realm ipv4-unicast { interface fe-0/1/0.0; interface fe-0/1/0.0; multiple-address-families.html

Topics

#OSPFv3#IPv6#dual-stack#prefix advertisement

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