查看此解决方案：在使用HTTPS 443绑定托管的WCF服务中获取客户端IP地址 [ ^ ]

Check out this solution: Get client IP address in a WCF Service hosted using HTTPS 443 bindings[^]

OperationContext oOperationContext = OperationContext.Current;
MessageProperties oMessageProperties = oOperationContext.IncomingMessageProperties;
RemoteEndpointMessageProperty oRemoteEndpointMessageProperty = (RemoteEndpointMessageProperty)oMessageProperties[RemoteEndpointMessageProperty.Name];

string szAddress = oRemoteEndpointMessageProperty.Address;
int nPort = oRemoteEndpointMessageProperty.Port;