Gets or sets the IPv6 address scope identifier.
Syntax
Value
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Remarks
The meaning of IPAddress.ScopeId changes depending on the context in which it is used.
Link-local address. On a host with multiple interfaces connected to separate links, the same link-local address can be assigned to multiple interfaces. To eliminate this ambiguity, a scope identifier is used to specify the interface over which messages are exchanged.
Link-local addresses, identified by the Format Prefix (FP) FE80, are used by nodes when communicating with neighboring nodes on the same link.
Site-local addresses. A host can be connected to multiple sites. In this case, a scope identifier is used to indicate a specific site to communicate with.
Site-local addresses, identified by the Format Prefix (FP) FEC0, are used by nodes when communicating on private intranets.
The notation that is used to specify the ScopeId with an address is Address%ScopeId. For example, FE80::5EFE:192.168.41.30%2.
Requirements
Assembly: System (in System.dll)
Assembly Versions: 1.0.5000.0, 2.0.0.0, 4.0.0.0