The property specifies the override flag (O-bit). When set, override_flag basicDataTypes: override_flag 0..1 the O-bit indicates that the advertisement should override an existing cache Boolean entry and update the cached link-layer address. The property specifies the IP address of the target of AddressObj: Target_IPv6_Addr Target_IPv6_Addr 0..1 the advertisement. AddressObjectType The property specifies zero or more options, some of which may Options Options 0..1 NeighborOptionsType appear multiple times in the same message. NeighborOptionsType The class specifies zero or more options of a Neighbor Advertisement packet, some of which may appear multiple times NeighborOptionsType in the same message. The property table of the class is given in Table 321. NeighborOptionsType Table . Properties of the class NeighborOptionsType Name Type Multiplicity Description The property characterizes the Target Target_Link_Addr Target_Link_Addr 0..1 NDPLinkAddrType Address option. RedirectType Class The class specifies a NDP packet which Routers send to inform a host of a better first-hop node on the path to a destination. RedirectType Hosts can be redirected to a better first-hop router but can also be informed by a redirect that the destination is in fact a neighbor. The latter is accomplished by setting the ICMP Target Address equal to the ICMP Destination Address (class=137; code=0). The property table of the class is given in Table 322. RedirectType Table . Properties of the class RedirectType
override_flag basicDataTypes: Boolean 0..1 The override_flag property specifies the override flag (O-bit). When set, the O-bit indicates that the advertisement should override an existing cache entry and update the cached link-layer address. Target_IPv6_Addr AddressObj: AddressObjectType 0..1 The Target_IPv6_Addr property specifies the IP address of the target of the advertisement. Options NeighborOptionsType 0..1 The Options property specifies zero or more options, some of which may appear multiple times in the same message. NeighborOptionsType The NeighborOptionsType class specifies zero or more options of a Neighbor Advertisement packet, some of which may appear multiple times in the same message. The property table of the NeighborOptionsType class is given in Table 321. Table . Properties of the NeighborOptionsType class Name Type Multiplicity Description Target_Link_Addr NDPLinkAddrType 0..1 The Target_Link_Addr property characterizes the Target Address option. RedirectType Class The RedirectType class specifies a NDP packet which Routers send to inform a host of a better first-hop node on the path to a destination. Hosts can be redirected to a better first-hop router but can also be informed by a redirect that the destination is in fact a neighbor. The latter is accomplished by setting the ICMP Target Address equal to the ICMP Destination Address (class=137; code=0). The property table of the RedirectType class is given in Table 322. Table . Properties of the RedirectType class