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?
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A. B. C. D.B.
The network design that the customer is requesting should support the following requirements:
FHRP redundancy: First Hop Redundancy Protocol (FHRP) is a protocol used in a network environment to provide redundancy for the default gateway IP address. FHRP ensures that if the primary router fails, the secondary router takes over the default gateway IP address without causing any disruption to the network.
Multivendor router environment: In a multivendor router environment, there are different types of routers from different vendors that are used in the network.
IPv4 and IPv6 hosts: IPv4 and IPv6 are two different versions of the Internet Protocol. IPv4 is the most widely used version of IP, while IPv6 is the latest version of IP.
Considering the above requirements, the protocol that best suits the design is the Gateway Load Balancing Protocol (GLBP).
GLBP is a Cisco proprietary protocol that provides first-hop redundancy by load balancing the traffic between multiple routers. It also provides load balancing for both IPv4 and IPv6 hosts. GLBP is a multivendor solution and can be used in a network with routers from different vendors.
In contrast, HSRP and VRRP are also FHRP protocols that provide redundancy for the default gateway IP address. However, HSRP is a Cisco proprietary protocol, while VRRP is an open standard protocol. HSRP and VRRP are only available for IPv4 hosts, whereas GLBP can provide redundancy for both IPv4 and IPv6 hosts.
VRRP version 2 and version 3 are also FHRP protocols that provide redundancy for the default gateway IP address. However, VRRP is an open standard protocol that can be used in a multivendor environment. VRRP version 3 provides support for IPv6, but VRRP version 2 does not.
Therefore, the correct answer is C. GLBP.