A customer requests a network design that supports these requirements: - FHRP redundancy - multivendor router environment - IPv4 and IPv6 hosts Which protocol does the design include?

Question

Options

• AGLBP
• BVRRP version 2
• CVRRP version 3
• DHSRP version 2

• A
  3% (1)
• B
  6% (2)
• C
  88% (29)
• D
  3% (1)

Explanation

VRRP version 3 is the correct choice because it is an open standard protocol (RFC 5798) that supports both IPv4 and IPv6, making it ideal for a multivendor environment that must serve both address families.

Why the others are wrong:

• GLBP (A) is a Cisco-proprietary protocol, which disqualifies it in a multivendor environment.
• VRRP version 2 (B) is an open standard, but it only supports IPv4 - it cannot handle IPv6 hosts.
• HSRP version 2 (D) supports both IPv4 and IPv6, but it is Cisco-proprietary, so it fails the multivendor requirement.

Memory tip: Think of the three key requirements as a filter: multivendor eliminates GLBP and HSRP (both Cisco-only), and IPv6 support eliminates VRRPv2 - leaving only VRRPv3 as the sole protocol that passes all three tests. Remember: "V3 = Vendor-neutral + both versions (v4 & v6)."

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