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200-301 · Question #783

Which two statements about IPv6 router advertisement messages are true? (Choose two.)

The correct answer is A. They use ICMPv6 type 134. B. The advertised prefix length must be 64 bits.. IPv6 router advertisement message is one type of the ICMPv6 packets with Type field value of 134. It lists many facts, including the link-local IPv6 address of the router. Normally, it is sent to the all-IPv6-hosts local-scope multicast address of FF02::1. When sent in response t

Submitted by thandi_sa· Mar 5, 2026

Question

Which two statements about IPv6 router advertisement messages are true? (Choose two.)

Options

  • AThey use ICMPv6 type 134.
  • BThe advertised prefix length must be 64 bits.
  • CThe advertised prefix length must be 48 bits.
  • DThey are sourced from the configured IPv6 interface address.
  • ETheir destination is always the link-local address of the neighboring node.

How the community answered

(42 responses)
  • A
    88% (37)
  • C
    2% (1)
  • D
    2% (1)
  • E
    7% (3)

Explanation

IPv6 router advertisement message is one type of the ICMPv6 packets with Type field value of 134. It lists many facts, including the link-local IPv6 address of the router. Normally, it is sent to the all-IPv6-hosts local-scope multicast address of FF02::1. When sent in response to router solicitation messages (ICMPv6 Type 133), it flows back to either the unicast address of the host that sent the RS or to the all-IPv6-hosts address FF02::1. The advertised IPv6 prefix length must be 64 bits for the stateless address autoconfiguration to

Topics

#IPv6 RA#ICMPv6#IPv6 prefix length

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