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Implementing and Operating Cisco Enterprise Network Core Technologies (ENCOR) · Cisco
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HSRP (versions 1 and 2) and GLBP are Cisco proprietary and don't support IPV6. VRRP is an open-standard redundancy protocol. VRRP version 2 supports only IPV4 while version 3 supports IPV4 and IPV6.
Virtual RouterRedundancyProtocol(VRRP)enablesa group of devicesto form a single virtual device toprovideredundancy.TheLANclientscanthenbeconfiguredwiththevirtualdeviceastheirdefaultgateway.The virtual device,representinga group of devices,is also knownas a VRRP group. The VRRP version3(v3)ProtocolSupportfeatureprovidesthecapabilitytosupportIPv4andIPv6addresseswhileVRRPversion2 (v2) only supportsIPv4 addresses.This moduleexplainsconceptsrelatedto VRRPv3and describeshowto create and customizea VRRP group in a network.Benefitsof using VRRPv3ProtocolSupportincludethe following:•Interoperabilityin multi-vendorenvironments.•VRRPv3supportsusage of IPv4 and IPv6 addresseswhile VRRPv2only supportsIPv4 addresses•Improvedscalabilitythroughthe use of VRRS Pathways.
B is correct